Verification and publishing

Publisher and evidence

Tarkarn operates this website, the linked web tools and its published Android apps. Inspect the sample inputs and verification records used by our PDF articles below.

• PDF sample manifest: labels, dimensions, rotations and file hashes
• pdf-lib reproduction evidence
• PDF.js reproduction evidence
• Inspect a mixed-size and rotated document

What these checks establish

The public records identify the date, library versions and Node environment used for small synthetic text PDFs. They check page copy, splitting, rotation, dimensions, text extraction and PNG rendering. Node results do not prove support for every browser or preservation of forms, signatures, bookmarks, attachments or large files.

Preview images are renders of the sample PDFs, not tool screenshots. Keep your original and inspect the downloaded result before sharing.

Corrections

Each verified article links to its evidence. A verification date describes that run; it does not mean every example in a library tutorial was tested. Send the URL, incorrect statement and reproducible evidence when you find an error. We check the report and update affected text and evidence when a correction is confirmed.

Advertising and privacy

Advertising is limited to the two existing library tutorials. PDF cases and verification records do not enable ads. Ad networks may use cookies on pages that load their scripts. Language selection is stored as tarkarn-lang in localStorage.