Blog
Notes on streaming PDFs
Engineering deep-dives, specification notes, and performance lessons from building the fastest online PDF reader.
Reader
The fastest online PDF reader.
Documentation
Guides for readers and developers — start at the documentation home.
PDF 1.7 Spec
Read it on the Adobe website , it's free.
PDF Association
Home of the worldwide PDF technical community, the PDF Association provides a vendor-neutral platform for developing open specifications and standards for PDF technology.