Merge PDF — Combine Multiple PDFs Into One
Joining a cover letter, résumé, and certificates into a single application? Combine any number of PDFs into one clean document, in the order you choose — free, no software to install.
How to merge PDF files
- Open the PDF tools and choose Merge PDFs.
- Select two or more PDFs in the upload area (multi-select is enabled).
- Click Merge and download the single combined PDF. Every uploaded file is deleted automatically.
Why use File Forge?
- Unlimited combining: merge as many PDFs as you need — no two-file free cap.
- Verifiably private: your files are deleted right after download, and the code is open source so you can confirm it.
- Free, no signup: no account, no watermark stamped across your pages.
How File Forge keeps your Merge PDF files private
When you use the Merge PDF tool, your file is uploaded over an encrypted HTTPS connection and processed on the server, then handed straight back to you. File Forge is built privacy-first, and — because the entire codebase is open source — every claim on this page is something you can verify line by line or run yourself, rather than a marketing promise you have to take on trust.
Your file is deleted the moment you are done
The file you upload is removed from our server as soon as the Merge PDF operation finishes, and the processed result is deleted the instant you download it. As a safety net, a background sweeper runs continuously and purges anything older than one hour, so nothing of yours lingers on disk. We never build a library of your documents, never resell them, and never train anything on them. There is no hidden retention and no analytics tied to your file contents.
Open source you can audit — or self-host
Most “free” online file tools ask you to trust a closed black box. File Forge is different: the complete source code is public on GitHub, so a developer can read exactly how the Merge PDF tool handles uploads, confirm the deletion logic, and even run a private copy on their own machine or server. Verifiable privacy beats a privacy policy you simply have to believe.
No account, no watermark, no upsell
There is no signup, no email wall, and no credit card. File Forge never stamps a watermark on your output and never caps you at “one free file” before demanding payment. The Merge PDF tool is genuinely free to use as often as you need, on any device with a web browser — no software to install and no extensions to add.
Frequently asked questions
How many PDFs can I merge at once?
As many as you like in a single pass — select them all in the upload area. There's no artificial two-file limit.
Can I choose the order of the merged pages?
Yes — the files are combined in the order you select them, so arrange them the way you want the final document to read.
Can I merge a password-protected PDF?
Remove the password first with the free Unlock PDF tool, then merge the unlocked copy with your other files.
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