Merge PDF files
Join two or more PDFs into a single document. Order them by dragging. Your files never leave the tab — which matters when the PDFs are contracts, bank statements or medical records.
How to merge pdf files
- Drop in two or more PDFs.
- Drag the rows into the order you want them combined. The left-hand number is the position in the final document.
- Name the output file.
- Press Merge. The combined PDF downloads straight away.
Why this one is different
Almost every free file tool works the same way: you upload your file to a company's server, their machine does the work, and you download the result. That means a copy of your document sat on someone else's hard drive, governed by a privacy policy you did not read.
Filebench does the work in the browser tab you are already looking at. There is no upload step because there is no server to upload to. The practical consequences: no file size limit, no queue, no account, no watermark, and it keeps working if your connection drops after the page loads.
| Filebench | Typical online converter | |
|---|---|---|
| Your file leaves your device | Never | Every time |
| File size limit | None | Often 10–100 MB free |
| Sign-up required | No | Usually, past a few files |
| Watermark on output | No | Sometimes |
| Works offline after loading | Yes | No |
Questions
Are my PDFs uploaded to a server?
No — and this is the main reason to use this rather than a hosted service. The merge is performed by JavaScript inside your browser tab. Nothing is transmitted, nothing is stored, and there is no server-side copy to delete afterwards.
Is there a limit on file size or number of files?
No imposed limit. Practical limits come from your own device's memory. Merging dozens of ordinary documents is comfortable on any modern machine.
Can it merge password-protected PDFs?
Not reliably. A PDF that requires a password to open cannot be read without it, and you will get a clear message naming the file that failed. Remove the password in your PDF reader first, then merge.
Does merging reduce quality?
No. Pages are copied across as-is, with their existing fonts, vectors and images intact. There is no re-compression, so the output is exactly as sharp as the inputs.
Do bookmarks and form fields survive?
Page content, text and images always survive. Bookmarks, annotations and interactive form fields may not be carried across — check the result if your documents rely on them.
Other tools
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Swap between PNG, JPG and WEBP in bulk. Choose a background colour when converting transparent images to JPG.
Compress images
Cut image weight with a quality slider and an optional size cap. Each result shows the percentage saved.
Resize images
Resize by width, height, exact dimensions or percentage — in bulk, with the aspect ratio kept.