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Knowing how to use HTML code is something that is very useful to web developers. This is the language they use to create web pages that use a great deal of formatting so it look fantastic. However, in most cases, unless you have the ability to understand and write using HTML code, you are much more limited in how your document looks.  That is why it’s beneficial to know how to convert Word to HTML.

Reasons to Convert Word to HTML code

Online Submissions

Many online processes only accept documents that are done with HTML code. This might be for submitting articles online somewhere to get them published, saving bookmarks or even updating your profile on social networks. If you know HTML code, you can use fancy formatting tricks for these types of items to make your submissions get noticed because they stand out and include the special HTML formatting.

Website Pages

Another big reason to convert Word to HTML is for a web page. Since the new tools make it so easy to start a website, it seems like most people have their own website.  This is a much more common need than in the past, but if you can use HTML code, your website can look even better.

Most people are familiar with Word in some manner. It gives you the ability to quickly and easily change the color of the text, adjust the fonts, alter the size of the words and much more. These are formatting changes we take for granted when we’re working in Word because we’ve done them so many times and they are so easy to do. However, if you don’t know HTML coding, your completed document would just be a page of standard text, with no formatting at all.  That is very unappealing to read and it makes it difficult for you to highlight sections of the page that you want to draw the readers attention to.

However, now you can easily convert Word to HTML. You can use your existing knowledge of Word to create a document that looks fantastic using any of the formatting options available in Word. Then, all you need to do use a doc to HTML converter and copy and paste the HTML code into your web page.

How to Covert a Word Doc to HTML

convert word to htmlIf you need to convert Word to HTML, the great news is that it is very simple to do. Not only do you not need HTML coding skills, but you don’t even need advanced computer skills.

When you use a good online Word to HTML converter, getting your Word document converted is as simple as selecting the document on your computer.

In the example shown above, you just need to use the “Choose File” option to convert Word to HTML.  Then you go to the document you want converted and select it.  Then you just click “Convert File”.

The tool will then handle the conversion for you and will provide you with a link to retrieve and download the converted file.

Now that you know how to convert Word to HTML, the formatting limitations on websites or online profiles, etc have been lifted!

In one of our former blog articles, we talked about Cross Conversion and about the possibilities of cross converting different file types like images, documents, audio data, or videos back and forth. This time, we’re concentrating on how to extract a text document from image files in much more detail.

For this, we will have a look at what this feature can be useful for, explore into the topic of optical character recognition (OCR), and show how it is done using the’s document converter.

Image by University of the Fraser Valley

Image by University of the Fraser Valley

What do I need this for?

So first, lets see what the practical use of such a image to text conversion would be.

Blind and visually impaired people

Looking at images with written text on them, whether you found a funny sign you want to show around or took a photograph of a presentation including slides with text on them,  is stressful for visually impaired people – completely impossible for blind people even. Extracting the text from the picture or image will enable visually impaired people to change the font size and make it easier for them to read the resulting text. Likewise, they could now proceed to convert the text file into an audio format. This way, heavily visually impaired and blind people can receive a reading of the text in question.

Presentations and lectures

Usually, when attending a lecture or listening to a presentation, you are handed out presentation notes that go along with the content of the slides presented. This way, you only add additional information to the sheets you already have.

Sometimes, however, there are no lecture notes handed out, and the speed of the presentation is just too fast for you to copy the content on the screen. In the age of every cell phone having a camera, there is always the possibility to take a picture of the slides and copy the notes later on – by hand.
Extracting the text from the images saves time since it works a lot faster than copying it by writing down the content of every single slide. This way, lecture notes or presentation summaries are created a lot faster, and all you need to do is format your document and maybe restructure it a bit.

Scanned text

Another important utilization of this tool is to gain editable text from a scanned document. Preserving the content of older stories and letters written on a typewriter, or scanning a document or pages from a book to work with the text later on can be reasons for why this may be important. Found an old story typed by your grandmother? Writing an essay about the contents of a book? By extracting the text from the scanned image it is possible to edit, merge, or electronically use it. Mail, business cards, invoices, receipts, or passport information can be digitized this way and used for further, electronic storing and editing.

Furthermore, when building up a collection of this digitized data, it enables you to search for certain keywords or phrases on top of the editing that can be applied to the now extracted text.

Optical Character Recognition

But how does the process of extracting the written information from an image work? The method applied here is called Optical Character Recognition (OCR). It extracts the single characters into mechanical fonts. Earlier versions had to be trained beforehand, only recognizing one font type at the time, but the modern versions support not only different font styles, but – to an extend – even formatting, resulting in the output closely resembling the photographed or scanned text.
Furthermore, OCR is able to support the most common writing systems like Latin, Arabic, Cyrillic, Bengali, and more.

There are several types of text recognition. Optical Word Recognition targets one word at the time, working for languages that use blank space to divide words, while Optical Character Recognition targets one character or graph at the same time. Both work on typewritten text only. Intelligent Character or Word Recognition even targets words or characters in hand written or cursive text.

How to use OCR

Now that you know why you may use image to text conversion and learned something about the process behind it, it’s time to find out how to actually do it!

The easiest way is to use an online document converter that supports OCR. After picking your desired target file type (whether it’s Microsoft DOCX, PDF, or some other) you can choose the image that you want the text to be extracted from. Before hitting the “Convert File” button though, make sure that you tick the box where it says “Use OCR”. This way, the process of OCR will take place in your conversion, giving you the result of your scanned or photographed text in a document file.


video editing

image by mobilechina2007

The basic usage of an online video file converter is – as the name most probably told you already – converting different types of video file formats. From MOV to MKV, from AVI to MP4, or any other possible combination. But there are several other features a video converter can offer!

In earlier blog entries we have looked at how to extract a still image from a movie, or how to rip music from a video clip very easily. But that’s not all you can do by using an online video converter!

This article will give you an overview over what is possible using the video converter in the means of editing video clips or movies.

Changing the Screen Size

Some videos are recorded with a very big screen size to make it appealing to watch it on a big or wide screen. Yet, if the screen size is too high, there may be problems when watching the clip on a smaller laptop screen or on a phone. It may stop, stutter, or even be unable to play at all.

Changing the screen size is an easy way how to avoid such problems. On our website, you have the option to enter the desired screen size in pixel for the converted video. Simply add a smaller number than the original screen size in the form width x height and the converted video will have the inserted dimension in terms of screen size.

Change the File Size

Another problem occurring when transferring a video from a computer to a phone, or even more evidently when sending a video clip over the internet, is the file size of the video file in question. Large files can’t be attached to an email because they exceed the sending limit of your email provider. Equally, videos that are too large in file size take up too much space on a phone or can possibly even exceed the space available on the SD card or the internal memory.

Our service provides a few options on how to reduce the file size of the target video.


By changing the average video bitrate by using the optional parameter available when converting a video, you automatically reduce the file size of your video. Sure, by lowering the bit rate, the quality of the video will be lessened as well, yet when watching it on a smaller screen (like on a phone), it doesn’t fall into account that much.

Audio Quality

Likewise, the quality of the audio data of the original video can be altered to have a resulting file with a lower file size. This parameter gives you a variety of options, ranging from 8 to 320 kbps. The resulting and converted video will have the audio quality chosen.

Change File Size directly

Another way to decrease the file size of a movie or video clip is to enter an approximate value in MB. During the conversion, our service will try to reduce the file size to the set parameter as closely as possible without applying great changes to screen size and bitrate.

Change the Frame Rate

There are several reasons why you may want to change the frame rate of your video. Cameras record videos in different frame rates, depending on the setting. When editing videos and merging two videos that have been recorded in a different frame rate, this could become a problem. Furthermore, there exists a difference across digital television broadcast standards. The American standard ACTS supports an approximate frame rate between 24 and 60 pictures per second, while the standard DBV-T which is used especially in Eruope, or DTMB which is common in China, use different frame rates.

To change the frame rate in general or to get the same frame rate for several videos, all that has to be done is to fill in the desired number of pictures or frames per second for the conversion of the video.


A very easy and fast way to cut your video or to only select a certain part of a longer video is converting it while using the according parameter. Filling in the start and the end time of the target video in the form 00:00:00 will result in the converted video only containing the content of the section you selected in this way.

Rotating, Mirroring, and Flipping

Especially with the new phones, it can happen that videos are recorded vertically even though they shouldn’t. Or sometimes, videos come out upside down because of the preferences of the camera. Instead of having to install some editing software just to rotate or flip a video, toggling the preferences with our online video converter can do the trick.

For rotation, you have the options of rotating the video to 90°, 180°, or 270°.
Or you can flip your video horizontally or vertically.

Kindle File Formats - How to Read Everything on Your Kindle Fire

Image by Zhao!

It’s a pretty well known fact that the Kindle is the most popular e-reader on the market. It came out relatively early in the e-book revolution and is backed by Amazon, which means it has a tremendous distribution network. The size of the Amazon network also means you should learn about the Kindle file formats so you can use your Kindle for your old e-books as well as your new ones.

Why You Need to Convert

One of the few problems with the Kindle (and many of the other readers as well) is that it only reads a specific type of e-book file. They developed their own Kindle file formats called AZW, or AZW3 (in the more recent versions). The Kindle also has the ability to read files in the MOBI and PRC formats. As far as document files, the Kindle can easily manage TXT and PDF files.

However, if you have e-book files that do not use those specific file extensions, your Kindle will have trouble opening them because they were not created with the specific Kindle ebook file format.

As we become more technologically savvy, and more dependent upon our devices, this gets more complicated. For example, if you previously had a different kind of e-reader device you may have many books that you want to keep, but in most cases, if those books aren’t using the Kindle file formats, your new Kindle won’t be able to read them.

You might also have a large document that you need to read for work, but you want the convenience of having that document on your Kindle instead of having to carry around your laptop anytime you think you may want to read it.

The good news is that you don’t have to lose access to those books or important documents if you have access to a good online ebook converter.

How to Convert

The really good news is that it is very simple to convert your e-book files from one type of format to one of the Kindle file formats, if you have a good converter.

In most cases, all you have to do is access the e-book converter and then tell it which file you want to convert simply by browsing on your computer and selecting the proper file. Then you select which of the Kindle file formats you want the file converted to. There may be some additional features to choose from, but they will depend upon the specific converter you’re using.

The converter should then either send you an email of the converted file or provide you with a download button on the website page you’re using. Then you just need to add the newly converted e-book (now created in one of the Kindle file formats) to your Kindle and you’re ready to go!

Which Format to Choose

Of course, if you are converting your e-book files to something that will work with your Kindle, you should convert it to the AZW or AZW3 formats. However, if you are converting your files for a different type of e-reader, make sure you select the specific file that can be read by your device.

The basic and general features of a file converter, whether it’s a software tool you have to install on your computer or whether it’s an online service, are mostly the same: You upload a file and convert it into another format, either because you can’t open the initial file, because you want to reduce the file size to send it over the internet, or because you want to send it to people that may not be able to open the original file format.

Image by desertdarlene

Image by desertdarlene

These conversions mostly happen inside a certain category or type of file formats, e.g. from one image file format to the other, or from one document to a different type of document. Yet, there is something else our online converter service can do for you, and it all falls under the term Cross-Converting.

Cross Converting entails that you can not only convert your audio file into another audio file, but that you can actually convert across file types. Converting a movie file into music, or an image into PDF are only a few possibilities. This article will show you many different options of cross converting your files, creating many new possibilities for you!

Extract audio from a video

Sometimes, it’s hard to get your hands on certain movie background music, or the tracks on the OST or Score do not really convey the feel they had when heard in the movie because certain background sounds have been missing. Or maybe there is an interesting part of a speech or monologue from a recorded lecture or speech you want to extract.

The Solution: If you are just interested in the audio data from a video, you can easily extract it by converting the movie file into MP3, WAV, or some other audio file like Apple iTune’s AAC.

Create audio from a document

There are different ways to learn, and next to reading and repeating, listening is a big part of the remembering process. Furthermore, at times it’s difficult to find the time to read your lecture notes, online articles, or even longer correspondence that include a lot of information – especially when you’re on the road a lot.

The Solution: Convert your PDF or Microsoft Word documents into an audio file format, preferably MP3 because it’s supported by most audio playing devices and mobile phones. This way, you can listen to your notes and writings, rewind, repeat, and memorize the information even better.

Extract text from a picture

Another very popular way of taking notes is taking a quick photo of blackboard notes or presentation slides. But what if you want to use the text to alter or insert somewhere? There is an easier way than copying the text from the picture by writing it down yourself.

The Solution: Depending on the quality of the photo you have taken, it can be converted into a TXT or DOC file which gives you the text of whatever has been on the picture.

The easy way to make a presentation

Holding a presentation is so much easier when you have just one file with all the information on it instead of having to switch in between pictures, texts, audio, screenshots, and video.

The Solution: If you have your notes already prepared in a text document or even saved as PDF, you are only one click away from converting your document into a PowerPoint presentation.

Also: It works the other way round as well though. By converting PPT or PPTX files into PDF, you can get not only a printer friendly version, but you can also ensure that most people are able to open and vie your presentation.

Animated GIFs

Animated GIFs are one trend on the internet that will never completely die out, being revived again and again. Yet, not everybody is skilled in the art of creating such animated pictures, and not everybody has the programs necessary to make them.

The Solution: A very easy way of creating an animated GIF is to convert your MP4 or other video file. If you upload a larger movie file, only the beginning will be converted into an animated GIF, so the most convenient way is to cut the video into the portions you want to be “giffed” and upload them individually, creating an receiving the animated pictures you wanted.

From document to eBook

Another great way of memorizing your notes and rereading them is a very paper saving one as well. Most people take notes in lectures, talks, or meetings on their laptop nowadays, but it can be annoying and impractical to carry it with you whenever you want to re-read on what has been talked about. Printing all the notes isn’t a very convenient option either.

The Solution: Convert Microsoft Word or OpenOffice documents into an eBook format. The purpose of eReaders is to store books and other papers in a space and paper saving way. Furthermore, they re very light and easy to take with you, with a library option to quickly find the notes you need.

Present your Design projects

Creating a design project for your customers is linked to quite some struggles. One is faced when you want to present your progress or suggestions to your customers. It is very likely, that they can not open your vector graphic or EPS, PSD, or DWG file.

The Solution: Converting your special image files into JPG or even PDF makes it easy and convenient for your customers to look at the design you made for them. Furthermore, the conversion will leave your original file untouched!

And there’s more…

These are only the most common and most popular Cross Conversion features online conversion tools can offer. If there are any more features you would like to see implemented concerning Cross Conversion, feel free to contact our support team. We are constantly striving to better our service for you, and suggestions made are always welcome.

If you suddenly run up against the need to use video converters, it can be daunting. If you’re already familiar with terms like codecs, containers, formats, MP4 and FLV, you’re all set. However when most people see the message on their screen indicating their computer can’t open a video file, they panic.

video converters

Image by photosteve101

You don’t need to panic. Finding and using video converters to change your video file into a different type of file is quick and easy, once you learn how.

Here are some of the common questions that arise when people are faced with the challenge of using a video converter.

FAQ’s for Video Converters

Why Do You Need a Video File Converter?

The need to look for video converters usually comes from two different places.

  1. You want to submit a video file online somewhere, but the site you’re using only accepts certain types of video files.
  2. You want to open a file on your computer, but you’re getting a message that says your computer is unable to open the file.

In either case, your best option is to review the available video converters to simply convert the video to a different type of video file format.

What Does the Converter Do?

Using video converters simply changes the file extension for the video from one video extension to another. This changes the makeup of the file, but the actual video remains unchanged from a user or viewer perspective.

How Do You Do It?

Using video converters is typically very easy, when you find the right one to meet your needs. If you are using software, you likely have to install the software and learn how to use it. However, there are so many video converters online, that it’s usually much easier to use one of those.

When you use online video converters, you typically just have to choose the type of file you need to convert your file to, browse on your computer to select the file and then tell the website where to send the converted file.

What Are Codecs and Containers?

Every video you see is actually a group of several different files that are combined, and that sometimes causes confusion.

A container is what actually holds all of those different files. Some of the common container extensions are FLV, MOV, AVI and MP4.

A codec is one of the files within the container. The codec file contains software to manage the video file, specifically the size of the file. Most videos must be compressed in order to be useable and the software within the codec determines how this compression is handled.

How Do You Find Good Video Converters?

It is very easy to find good video converters. The first thing you should do is do an online search to find the available options. Then you need to know what kind of features are “must have’s” for your project, and make sure the converter you choose has those features. It’s also important to make sure the video converters you are considering have the ability to convert your file to the specific file type you need.

Encoding, encryption, hashing…

Image by

Image by

Those three can easily be confused since they serve roughly the same purpose. Yet, there are drastic differences between them. This article will serve the purpose of telling you, which method to use for which purpose, and what distinguishes them from one another.

Yet, all differences aside, encoding, encryption, and hashing do share some similarities:

  • All three methods transform data into another format
  • Encoding and encryption are reversible, while hashing is not

Now, let’s have a look at the three methods of data transformation one by one before you will presented a short summary of the differences and when to use which method.


Encoding is mainly used in data storage, computation or the sending of data in form of texts.

It is used to transform a set of characters (numerals or letters) in a way so another system is able to read the information contained in the encoding. Publicly available encoding systems are used to do so, transforming the initial data into bit patterns, numbers, electrical impulses, or any other kind of code. The encoded messages can easily be decoded by using the algorithm that has been used to encode the data.
Thanks to internationally deployed encoding standards, an exchange of textual information worldwide via email or cloud storage is possible.

Encoding does not serve the purpose of keeping the encoded data private! Since the different algorithms are available to the broad public, encoded data can easily be read in many systems. It’s purpose is to transform data into a format that is readable by many systems.

Examples of Encoding include: ASCII code, Unicode, base64, or sending files via email


Encryption is a special kind of encoding that is used to send secret data like letters and passwords over the internet, using a secret key that ensures that only the people intended to read the content can access it. Thus, contrary to encoding, the purpose of encryption is to keep data secret from those that are not supposed to see or read it. Thus, the usability does not play a major role in encryption.

The data that is subject of the encryption is referred to as plaintext, the result generated by using an algorithm is known as being the cyphertext. During the encryption process, data is transformed into another format as well, using a special key. Without using the exact same key, the ciphertext, and the alogrithm used, the recipient of the secret data can not reverse the encryption process. The encrypted message is not safe from interception, yet the content of the message is.

Popular algorithms for encryption are: AES, RSA, or Blowfish


Hashing or the resulting hashes are widely used in computer software since they simplify the lookup of big data to detect duplicate strings. It is used in cryptography as well since it provides a fast and easy way to ensure that some kind of input data matches the value stored in the hash. Hashes can also be used to validate the integrity of data, by comparing two hashes and looking for obvious and drastic differences which would define two input contents as being different as well.

Reconstructing the data used to generate a hash is near impossible. Furthermore, two hashes created from almost the same data will always differ from one another and not generate an identical hash. Since the same input will always create the same output though, create a hash from a large set of data allows you to check if this set of data has been altered by creating a new hash after some time, and comparing both hashes. Thus, if a change has taken place in the input data, the second hash differs drastically from the first one.

Examples for Hashing include: BlowFish, SHA-3 and other hash generators


Now that we know what each method does and what it’s used for, it’s time to give a quick overview and comparison of the functions:

Encoding Encryption Hashing
Data Security Not secure Secure Secure
Reversibility Reversible Reversible Not reversible

We have talked about some of the more popular image file extensions in previous articles – Best Image File Extensions, Other Popular Image Extensions.  However, those articles only talked about some of the more general types of image extensions, raster images. Image files that are vector formats are more specific types of image and that is what we’re talking about here.

Image by Theen Moy

Image by Theen Moy

A vector file format (sometimes known as EPS files) store the image in a different way than the more traditional image files.  A traditional, or raster, file format stores the characteristics of each pixel in the image file. Vector formats are stored as lines, shapes and colors that are in a mathematical formula.

When Do You Need Vector Formats?

If you are not already familiar with vector formats, you probably need one because you are trying to submit an image somewhere, but were told that you needed to provide a vector file format instead of the one you gave them.  It is typically used for a lot of website work, handling logos and things like that where the quality and ability to scale the image are very important.

There are other instances when you would need to have an image in a vector file format and most of them are related to making it easier to manipulate the image.  If you just have raster images and don’t have any plans to do anything different or creative with them, you probably won’t need to utilize vector formats.

When the image is in the vector file format, the elements are all separate.  This means you can easily change the color for one of the elements, without having an impact on the others.  This comes in very handy when you want to alter the background of the image, but not the main image.

Another big benefit to using vector formats is that they scale very well.  That means your image will look great as a small thumbnail size, but you can also use the very same image and blow it up to a poster or even billboard size without losing any of the detail or quality.  If you tried this with a standard image file, the image would be nearly unrecognizable if it was blown up that large.

Vector Format Extensions

The most popular of the vector formats is the SVG file extension.  The Scalable Vector Graphics file was created as an open standard format. The purpose of creating the SVG file was to provide people with a file extension that was an all-purpose image file that was also versatile, scriptable and scalable. Due to the scriptable nature of the SVG format, it is frequently used in web applications.

Other types of vector formats include the Gerber format (RS-274X), AI (from Adobe Illustrator), ODG (Open Document Graphics), PPT (Microsoft PowerPoint) and XPS (XML Paper Specification).

If you need to convert from a raster image to a vector file format, (or vice-versa), the first thing you should try is to use an online image converter.  This could save you hundreds of dollars vs. sending your files to a professional to get them converted.

Does anyone remember “back in the day” when you could only hear your favorite songs at home or from the radio if you happened to be listening when your song was played?  Those days are long gone.  In today’s online world, you can take your entire music collection with you where ever you go.  However, in order for this to be as cool as you want it to be, you have to pick the right system to keep all your music.  We’re going to compare the two most popular cloud music storage options – iTunes Match and Amazon Cloud Player to help you make the right choice for you.

cloud music storage

Image by Grace Kat

Both of these cloud music storage services allow you to store and stream your music, which is the ultimate goal.  However, there are clear differences between the two that you should consider before making a decision. In some instances, when you go through the process of getting all your music on the same platform, you will have to convert some of your music to a different type of audio file format.  If you go through this process once, you definitely don’t want to have to do it again.

Audio File Formats

The type of audio files that are supported by each system are shown below:

  • iTunes Match: MP3, AIFF, WAV, MPEG-4, AAC
  • Amazon Cloud Player: MP3, AAC, WMA (Windows only), OGG, WAV, ALAC (Mac only), AIFF and FLAC.

If you plan to use music files that are FLAC, OGG or WMA, you will need to convert them to a different type of file first.  Neither iTunes or the Amazon music service have the ability to handle those files.

Differences Between Cloud Music Storage Options

The first difference between these two cloud music storage services is that iTunes only has one type of service available while Amazon has a free version of their cloud player and a paid version.

The free Amazon version allows you to add 250 songs (that you didn’t purchase from Amazon).  If your music needs are minimal and you only want a few of your favorite songs or CDs available when you’re away from home, this is a good choice. However, if this limit is too low, you will need to move to one of the paid options.

Another difference between these cloud music storage systems relates to organizing your music library.  Amazon’s cloud player doesn’t help with that.  However, if you have music on multiple devices and would like your music player to have the ability to consolidate those, remove duplicates and keep a synced version available on each device, iTunes is your best bet.

Since the Amazon cloud music storage system is web based, it means your music is available on any device that has a web browser.  It also works with both Android and iOS so if you have multiple devices, or plan to share the account with others who have different devices, this works well.

On iTunes, you can only access your music where the iTunes platform resides, or on an iOS device, but that nowhere else.

One big thing to keep in mind is that while these are two of the best options available for cloud music storage, you are basically only renting them.  If you don’t continue to pay the yearly fee (if you’re using the paid version of Amazon), you will lose access.

eBook Reader File Formats

Image by

eBook readers have a lot advantages over books in a printed paper-form. They are lighter, multiple books can be stored on one device, you don’t need any bookmarks because the reader remembers the page you read last, and so on. Yet, once you decided that you want to buy an eBook reader, you have quite the variety to choose from.

Following, we have listed some of the most popular eBook readers and the different file formats they support. Whether your can open and view PDF documents, MOBI files, or even PNG images on your mobile reading device can help you to choose the right one for you.

Amazon Kindle

The most well-known of all eBook readers isthe Amazon Kindle, as well as the Kindle Touch and Kindle Paperwhite versions. The one file extension most commonly associated with the Kindle is the eBook format AZW3 (or AZW for earlier versions). Other files the Kindle can open and display are:

  • eBook Files: AZW and AZW3MOBI and PRC (unprotected)
  • Document Files: TXT and PDF

Other files are supported by the Kindle as well, made usable on the device through conversion:

  • Document Files: HTML, DOC, and DOCX
  • Image Files:  JPEG, GIF, PNG, and BMP
  • Audio Files: AA, AAX, and MP3 (Kindle Touch)

Unfortunately, not all eBook file types can be opened with Amazon’s Kindle devices. The very common EPUB file, which is used by many other eBook readers, is not supported.

Barnes & Noble Nook

The Nook series of eBook readers was developed by and for the American company and book retailer Barnes & Noble. The e-reading devices are based on Android technology, and B&N even offers a service where you can read a Nook Store book for free for one hour per day when connected with the wi-fi connection in the B&N stores.

  • eBook Files: EPUB and PDBCBZ (Nook Tablet)
  • Document Files: PDF; DOC and DOCX (Nook Color and Nook Tablet)
  • Image Files: JPEG, GIF, PNG, and BMP
  • Audio Files: MP3, AAC, and OGG (Nook 1st gen and Nook Color)
  • Video Files: MP4, 3GP, MKV, WEBM, and more (Nook Tablet)

The Nook does not support Amazon’s AZW3 and books stored in the MOBI file format.

ECTACO jetBook

The jetBook is ECTACO’s mobile reading device which was introduced to the market in 2008. Files supported by the jetBook include:

  • eBook Files: EPUB, FB2, MOBI, and PRC
  • Document Files: PDF, TXT, RTF, and HTML
  • Image Files: JPEG, PNG, GIF, and BMP
  • Audio Files: MP3

The built-in MP3 player enables users of the jetBook to listen to music directly on the device while reading.

Amazon’s AZW and AZW3 files are not supported by ECTACO’s jetBook.

Kobo eReader

The Kobo (the name is an anagram to the word “book”) was developed by Kobo Inc. in Toronto, but later on bought by the Japanese company Rakuten. The following files are supported by the Kobo reader:

  • eBook Files: EPUB, MOBI, PRC, and CBZ
  • Document Files: PDF, TXT, and HTML

The Kobo Reader does not support Amazon’s AZW and AZW3 files.


Thee is a huge list of mobile reading devices developed and going under the name of PocketBook. The brand also produces tablet computers with an Android operating system.

  • eBook Files: EPUB, MOBI, FB2, and DJVU
  • Document Files: TXT, PDF, and HTML

Amazon’s AZW and AZW3 files are not supported by PocketBook devices.

Now that you read about the file formats supported by the most popular eBook reading devices, it should be a lot easier to make a choice. But even if you encounter an eBook you can not open with the reader you bought, you can still convert your eBook files into a supported file format.