Tinkr
All tools
Student·Live· Split in your browser

Split PDF

Extract specific pages or break a PDF into equal chunks. Each piece downloads as its own file. Runs entirely in your browser — your PDF never leaves your machine.

Drop a PDF here, or click to browse
Pages are extracted locally; nothing uploads.
Split entirely in your browser

Pages are copied into new PDF documents locally with pdf-lib — no upload, no API call. Sensitive contracts, signed agreements, and personal documents stay on your device.

Frequently asked questions

Is my PDF uploaded?
No. The split runs entirely in your browser using pdf-lib. Pages are copied from the source document into new PDFs locally, and only the resulting files are downloaded back to your machine. Nothing is sent to a server. You can use the tool with no internet connection after the page loads.
How do I specify which pages to extract?
Use the 'Custom ranges' mode and type pages like '1-3, 5, 8-10'. Each comma-separated piece becomes its own output PDF — that example would produce 3 separate files (pages 1–3, page 5 alone, and pages 8–10). Single page numbers and ranges (with `-`) can be mixed freely.
Can it split a long PDF into equal halves or quarters?
Yes. Switch to 'Equal parts' mode and pick the number of pieces (2, 3, 4, 5, 6, 8, or 10). Pages are distributed round-robin so each output is within ±1 page of the others — no part ends up disproportionately large or small.
Does each split download separately?
Yes. After splitting, click 'Download all' to save every piece, or 'Save' next to a single piece to download just that one. We deliberately don't bundle everything into a zip so you don't have to wait for an extra compression step.
What's the maximum PDF size?
Practical limit is around 50–100 MB depending on your browser and available memory. The PDF is read into memory in full; very large files may run out of RAM. If your PDF is huge, try splitting in two passes: rough halves first, then fine-grained pieces from each half.
Does it work with password-protected PDFs?
No, not yet. If the PDF is encrypted, the split will fail. Open the file in a PDF reader and re-save it without the password (most readers' Print → Save as PDF removes the encryption), then split the unprotected version.
What happens to bookmarks and form fields?
Page content, images, and standard annotations are preserved by pdf-lib's copyPages. Document-level features — outlines (bookmarks), form fields, and named destinations — may not transfer cleanly. For pure page extraction, the tool is reliable; for form-laden PDFs, verify the output.
What browsers work?
Modern Chrome, Edge, Firefox, and Safari (last two major versions). Mobile Safari and Chrome on Android also work for small/medium PDFs but may struggle with files past 30 MB due to mobile memory limits.

Related tools

Student
PDF → Flashcards
Turn lecture PDFs into spaced-repetition flashcards.
Open
Student
Word Counter
Word, character, sentence, paragraph counts plus reading time and Flesch-Kincaid level.
Open
Student
Merge PDF
Combine PDFs into one. In your browser. No upload.
Open