Batch Add Bookmarks
Many files that share a structural pattern — case files, monthly reports, chapter exports — get bookmarks the same way. Upload them all, see exactly what would be detected in a free dry-run across every file, then run the batch to write bookmarks into all of them and download a ZIP.
Drag multiple PDFs here, or click to browse
Dry-run preview is free for every file
Worked example: 60 monthly case files, one structure
A paralegal bookmarks 60 case files a month that all share the same section headings. Drop all 60 in, review the dry-run preview to confirm the headings look right on a sample of them, run the batch, and download one ZIP with every file bookmarked — instead of doing it by hand, file by file.
Frequently asked questions
What does "detect headings by font size" mean?
It clusters the font sizes used across your document and treats the largest, most distinct sizes as heading levels — the same shape publishers already use to design a document. It's a heuristic, not magic: review the dry-run preview before running the batch, since it can misfire on unusually styled documents.
Can I try this without paying?
Yes. The dry-run preview runs on every file you upload, free, showing exactly what would be detected. Running the batch — writing bookmarks into all the files and downloading the ZIP — is what requires an account and, past the first file, a paid plan.
What happens if one file fails?
It doesn't take down the batch. Each file processes independently; a failure on one is marked and skipped, and every other file's result is still there in the ZIP when the job finishes.
Where are my files while this runs?
Uploaded to a private, account-scoped storage location to process across many files at once — unlike the other tools on this site, which never leave your browser. Uploads are deleted within 1 hour and results within 24 hours.