PDF Merger — combine files into one

An online tool for merging PDF documents into one file. Drag and drop your PDFs in any order, choose which pages from each to include, rotate them if needed, and save the result with bookmarks for every source — all processed in your browser, no account required.

How to merge PDFs

4 steps

Add your PDFs

Drag and drop the files you want to combine, or pick them from your device.

Arrange them

Reorder the queue, set page ranges per file, and rotate any that came in sideways.

Page size and file name

Choose page size, whether to add bookmarks per source, and the output filename.

Download the merged PDF

One file containing every page you selected, ready to send.

Stitch multiple PDFs together with full page control

Drop a document here

PDF ·

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What you can do

Drag-to-reorder queue

Add as many PDFs as you need and shuffle them by dragging; the merged document follows that order page-for-page.

Per-file page ranges

Pick "1-3,5,7-end" to take only the pages you want from each PDF without splitting them into separate files first.

Rotate individual files

Fix sideways scans before they hit the merged document — 90° at a click, applied only to that source.

Bookmarks per source

Optional table of contents in the output, one entry per file, so readers jump straight to each section.

Flexible page sizing

Keep original sizes, or unify everything to A4, Letter, or the largest page found in your queue.

Merges on your own machine

Processing runs locally via WebAssembly — no installation, no waiting in a server queue.

Common uses

Combine scanned receipts into one expense report.
Stitch chapters of an ebook into a single readable document.
Merge a cover letter, CV and certificates into one job application.
Glue together a multi-source contract before signing.

Why merge PDFs here

Bookmarks, page labels and internal links survive the merge, you can take just a page range from each source, and the whole job runs in your browser.

Frequently asked questions

Will my fonts and layout be preserved?

Yes. Pages are copied verbatim from each source PDF — fonts, images and text layout stay intact in the merged file. Nothing is rasterised.

Can I merge password-protected PDFs?

Not directly. Remove the password from each protected source PDF first, then add it back to the queue.

How many files can I merge, and does the total size matter?

The count is not capped — drop in thirty files if that is what the job needs. The total is what matters, because every page is held in memory while the merge runs: a desktop copes with roughly a gigabyte of PDFs, a low-memory phone stops far earlier, and the page names your own ceiling before it starts rather than after. Merging scans? Running them through the compressor first buys a lot of headroom.

Are bookmarks and form fields preserved?

Yes, both are kept. Each source's bookmarks merge into the output outline, and AcroForm fields stay fillable.

Can I pick specific pages from a file?

Yes. Type a range like 1-3,5,7-end into the page-range field of any queue row — only those pages are included in the merge for that source.

💡 Want us to improve this tool just for you?

We can! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Published 21 May 2026 Updated 09 Oct 2026 Author: The Supreme