Merry Christmas!

Christmas is almost here and we just wanted to send our best wishes to all our great customers we have had this year. With our classic viewer continuing to be a popular choice we have also seen our Zine viewer make great progress with thousands of flip books published using Zine.

2013 has been a great year for FlexPaper and with some great ideas we hope to to make 2014 even better! 

Merry Christmas!

FlexPaper 2.2.1 Release Notes

We have started rolling out version 2.2.1 today. Our Zine viewer is the first viewer to be updated. Annotations and Classic builds will be updated at the beginning of next week.

  • Issue fixed where performing a search in FlexPaper Zine flash followed by switching into a different view would cause the viewer not to show the document
  • Improvements to the annotations build making the note widget easier to resize on touch devices
  • Issue fixed where a selection from a lower point to a higher point would create an incorrect annotation mark in the Classic Annotations viewer
  • Issue fixed where it wasn’t possible to select text inside annotation notes on iPad
  • Issue fixed where annotations would not be repositioned properly on resize of the browser window in HTML5 mode
  • Regression issue fixed where the annotations viewer would not resize on rotating a device
  • Fixed an issue related to external urls missing the leading “http://” which would not work in the flash mode of Zine
  • Optimizations for landscape documents in Flash mode within FlexPaper Zine
  • Issue fixed where publications with their thumbnails hidden in Zine would in some scenarios not show in IE10
  • Fisheye thumbnails improved for Zine in IE9 and IE10 when using FlexPaper in flip book mode with rendering mode set to HTML4 or HTML5
  • Mouse wheel support added for Zine (when viewing your publication as a flip book)
  • Issue fixed where fisheye thumbnails in Zine would appear in full screen even if turned off if the viewer was using PreviewMode. This was affecting the flash viewer only
  • Validation of documents containing non-JSON (non printable, control characters) compatible characters further improved in Desktop Publisher
  • Improved accuracy of selections in HTML4 and HTML5
  • FlexPaper in HTML5 mode now allows documents to be loaded from a Uint8Array. An example of how this is done will be posted on our blog.
  • Improved android pinching support in FlexPaper flip book mode
  • Rendering quality further improved for Android devices in flip book mode
  • Rendering quality further improved for iOS retina devices in flip book mode
  • Issue fixed where Zine would zoom unintentionally when dragging the corners of the pages in HTML5 and HTML4 mode
  • Links will now give a link hint when hovering a page in Zine in both Flash and HTML5
  • New Zine style property: Link color. Use this to set the desired link color in your publications
  • Issue fixed where the mobile preview in Desktop Publisher would respond to single clicks as opposed to double clicking which is what mobile devices do

HTML5 browser support : a study using the ability to create PDF flip book publications for the web

The support for HTML5 is still growing rapidly and while it is quite easy to estimate how large the market share is for HTML5 compatible browsers, it is much more difficult to make an estimate as to which devices that are powerful enough to really make use of the HTML5 technologies that are being used.


Mobile browser market share November 2013, source:


While most Android devices are using the latest super competent versions of Google Chrome, they still lack in CPU to really be able to make use of all features. Mobile Safari is in our experience still the most performant mobile browser, but is still to date (5 years from its initial release) experiencing stability problems and intermittent crashes when you push it to use more advanced HTML5 features. There are no official statistics on how frequent these crashes occur, but many studies point to Safari as one of the most crash prone browsers.

To overcome problems with memory and CPU usage, a mobile version which reduces the CPU usage is still the only real way through this. As an example, FlexPaper uses a mobile-optimized version of its HTML5 flip book viewer (see example here). This version only uses browser features which have been proven to be less power and memory hungry.


There are many different sources for browser statistics. For example W3Schools, StatCounter Global Statistics. Together with statistics over browser features, from sites like HTML5Readiness and findMeByIP, it is relatively easy to  make an estimate as to how large the market share is for browsers supporting the majority of HTML5 features is today. Our current estimate is that 90% of all browsers are HTML5 compatible in a reasonable sense.


To get some sort of sense of how large portion of the market that can really use these features, you then have to take a look at the devices that are out in use. From looking at these statistics, we believe that an accurate estimate today is somewhere in the range of 70-80% of how many browsers that are actually useful in a HTML5 sense. You can find the above illustration in more detail on our “HTML4, Flash or HTML5” page. This page also outlines which features that are supported on the major devices and browsers.




We’re continuously improving our HTML5 rendering mode for mobile devices. Our upcoming December release gets to enjoy even higher rendering quality for retina devices. Contact us for a pre-release!

A guide on creating interactive PDF flip book publications: adding images or videos with jQuery or with an app

Creating interactive PDF publications with videos or overlaying the PDF document with images or links often requires programming or other technical skills. With this guide, we try to clarify and explain the different ways you can make your PDF interactive both for offline and online scenarios. 


If you want to publish your PDF document to the web, then using a solution with support for multiple formats (HTML5, Adobe flash, HTML4) is a must in order to reach all devices and browsers.

Most if not all commercially available solutions places a requirement on the end user to either have flash installed on their desktop or for the end user to use one of the later versions of one of the modern browsers (for HTML5 to work) to enable this type of functionality. We decided not to restrict our users to one technology but rather give you the choice of which technology to use. This also makes it possible for your users to gracefully fall back to one or the other technologies if one is not supported in their browser. 


To add a video, link or image using FlexPaper desktop publisher, simply click one of the buttons located at the lower right corner of the desktop publisher design screen. This will make your cursor into a crosshair allowing you to draw an area on your PDF document where you would like to place your interactive content.


A dialog window will pop up after creating your selection. We have pasted a YouTube url into the add video dialog as seen above. Clicking OK will finalise this process. 


There are numerous tools available to add videos or images to PDF documents for offline use. Even Adobe Acrobat offers some functionality on doing this.


* Screenshot from Adobe Acrobat X

If you’re after exporting your interactive material into a PDF document and distributing this as a file then Adobe FireWorks in CS4 is a really good way to go about doing this. The video tutorial below from Adobe is a great start on creating interactive PDF documents (and saving them as PDF).