jankapunkt / pdfview

An Actionscript 3 based PDF viewer build from scratch

Note: For any issues, contact me via [email protected]

PDFView

Actionscript 3 based PDF viewer, built from scratch using the Adobe PDF specification standard. Aims to provide a viewer without using additional packages or code from third parties.

Licence Information

This project is released and maintained under the Apache 2.0 Licence.

Current status

• loading page tree and pages
• loading resources
• read content streams
• decode cmap font encoding to unicode
• displaying texts
• displaying embedded JPEG images

Installation Requirements

• Flex Sdk 4.6 or higher
• Flex IDE of your choice

If you are using apache flex sdk, you have to create a new branch and rewrite some base classes for compatibility, otherwise builds will generate errors. This is due to the aim, to provide backwards compatibility to Adobe Flex 4.6. A branch for Apache Flex Sdk will be set up soon.

Troubleshooting

If your project works, but you get runtime errors, especially out of bound or end of file, try different PDF input files from the asset folder.

Currently working, but not perfect are lorem.pdf and lorem2.pdf

pdfview's Issues

Implement outline

see pdf specifications

PDFImage

Hi ...

Thank you for your work

I try this ... i am using AdobeFlex 4.6 but a set of errors

com.jankuester.pdfviewer.core.pdfloader.PDFImage
com.jankuester.pdfviewer.core.model.resources.maps.PatternMap;
StringUtils.reverse

Theses classes is missing !!

Coordinate Matrizes

The Matrices for user space, transformations and so on are yet not implemented.

Implement PNG Filter types

Embedded PNG files are compressed (ZLIB/DEFLATE) but also prefiltered. Uncompressed streams are still not fully readable png files. Therefore implement a function to handle filtered streams.

Load embedded fonts from font programs

Some fonts are embedded as font programs (see PDF specs document) and have to be loaded as fonts at runtime

Graphics State Change on UpdateDisplayList

Override updateDisplayList and implement GraphicState values into the rendering

about the framework

Hi,

Is it possible to work on your sources from Flash pro CS6?

thanks