PDFSafeMerge PDF
Combine multiple PDFs into a single file, right in your browser — nothing is uploaded. Free tier merges up to 2 files at a time; Premium is unlimited.
Drop your PDF files here, or click to browse
Max 20MB per file · up to 2 files on the free tier
How to merge PDF files
Drop in the PDFs you want to combine, drag them into the order you need, and merge — the result is one PDF with every page from every file, in that exact order. Everything runs locally in your browser using pdf-lib, so nothing is ever uploaded to a server.
It's the fastest way to assemble a single document from scans, reports, or chapters that started out as separate files, without installing any software.
Frequently asked questions
How many PDFs can I merge at once?
Free accounts can merge up to 2 files at a time. Premium removes that limit entirely, so you can combine as many files as you need in one pass.
Can I control the order the files are combined in?
Yes — once you've added your files, drag them into the order you want before merging. The final PDF follows that exact order, top to bottom.
Is there a file size limit?
Each file can be up to 20MB on the free tier, or up to 100MB with Premium. Since merging happens in your own browser, very large combined batches may also be limited by your device's own memory.
Do my original files get changed?
No — merging only reads your files to build a new combined PDF. Your original files are never modified.
Do I need to sign up to merge PDFs?
No. Merging works immediately with no account, and your files are never uploaded to a server.
Related tools
- Split PDF — Divide a whole PDF into several files — every page, or every N pages.
- Compress PDF — Shrink PDF file size while keeping quality readable.
- Rotate PDF — Rotate all or specific pages by 90°, 180°, or 270°.