ISO standardized subsets of PDF, such as PDF/UA, enable files to claim conformance to a specific version of PDF/UA using XMP-based PDF/UA identification metadata. As a result of changes in ISO policy the defined XMP field names have evolved.
We were asked to investigate non-functional internal document (intra-document) hyperlinks in PDFs stored on Google Drive and viewed with Google’s Preview. Here’s what we found.
This recently published report from ISO/IEC JTC 1 SC 34 presents an analysis of related standards, the current status and size of the CSC industry, the cultural importance of continuously scrollable comics, and various technical challenges.
Brotli compression is coming soon to PDF 2.0, enabling smaller file sizes. Sample PDF files are available to kickstart development!
Google’s Jpegli promises smaller JPEG images (and so, smaller PDF files) with no change to reader software! Check it out for yourself!
What’s the smallest possible fully compliant and validatable PDF file? We set out to answer the question.
Triggered by our own experience in preparing the cheat sheet collection, this article explores the capabilities of PDF collections and strengthens the case for all PDF implementations to do a better job at supporting collection creation and viewing.
In 2021, not a single tested implementation passed this test. 3 years later about three-quarters of viewers we checked now render the test case correctly.
Does your PDF viewer fully support page labels? Does your PDF authoring software? Support for page labels can be a key factor in choosing a PDF viewer, especially for users dealing with complex documents.
To avoid confusing and frustrating users, applications can and should be robustly prepared for significant changes to PDF – with end user messaging in mind – well before files start to appear in the marketplace.