Merge & Split PDF
Combine several PDFs into one, or pull out the pages you need — entirely in your browser. Your files never leave your device.
No files yet — add PDFs and reorder them with ↑ ↓ before downloading.
Result
Add PDFs to merge, or load one and type a page range to split — the combined or extracted PDF is built here live, with its page count and size, ready to download.
Your PDFs are processed entirely in your browser and never uploaded. Pages are copied and reassembled in memory on your own device — no server call, no logging, no analytics on this tool. Disconnect from the internet and it still works.
Merge and split PDFs without uploading them
Almost every popular "combine PDF" and "split PDF" site — iLovePDF, Smallpdf, PDF2Go and the rest — works by uploading your file to their server, processing it there, and letting you download the result. For a shopping list that is fine; for a signed contract, a medical record, a payslip or an NDA it means a copy of a private document now sits on someone else's machine. This tool does the same two jobs with zero upload. Everything runs in your browser through pdf-lib, a pinned MIT library served straight from this page. Your files are read with the browser's local FileReader, the new PDF is assembled in memory, and it is handed back as a download. Nothing is transmitted, so there is nothing to leak.
Merging: order is everything
In the Merge tab, add two or more PDFs and each appears in an ordered list with its page count. The combined document simply concatenates them top to bottom, so the arrows matter: move a cover letter above a résumé, drop an out-of-date appendix with the ✕, and the download rebuilds instantly to match the list. Because whole page objects are copied — not re-printed — the merge is lossless: selectable text stays selectable, vector graphics stay crisp, and embedded images are untouched. A worked example: to assemble an application you might merge cover.pdf (1 page), cv.pdf (2 pages) and portfolio.pdf (6 pages) into one 9-page file in that exact order.
Splitting: the range syntax
In the Split / extract tab, load one PDF and it shows the page count, then type which pages you want in the box. The syntax is comma-separated numbers and ranges:
| You type | You get |
|---|---|
| 1-3,5 | Pages 1, 2, 3, then 5 |
| 8-10 | Just pages 8, 9, 10 |
| 10-8 | Pages 10, 9, 8 — reversed |
| 2,2,7 | Page 2 twice, then 7 |
Ranges are inclusive and the order you type is the order you get, so the splitter doubles as a page reorderer and duplicator. Numbers past the last page are skipped and flagged rather than silently ignored, and the extracted PDF is rebuilt live as you type.
It is a page operation, not an editor
This tool moves whole pages; it does not touch what is on them. That keeps it fast and lossless, but it also sets honest limits. It does not run OCR, so a scanned page stays an image with no searchable text. It does not re-flow or re-wrap text, resize pages, or edit content. It does not compress — if the merged file is large, run it through the PDF Compressor next. And a PDF locked with an open password generally cannot be read at all, so it may fail to load and is skipped; unlock it in the app that made it first. Files with only permission restrictions usually still open.
Why it can be slow on huge files
Doing the work locally trades a server's muscle for your privacy. Every byte lives in your browser tab's memory while it is processed, so a normal job — merging a few documents, or splitting a several-hundred-page report — is instant, while combining many very large high-resolution scans at once can be slow or exhaust a phone's RAM. If a giant merge stalls, do it in smaller batches. That is the only real cost of never uploading, and for most everyday PDFs you will not notice it.