- 1Upload
- 2Configure
- 3Download
Merge PDF
Combine multiple PDFs into one file, in any order you choose.
Drop PDFs here
Add two or more files — you'll set the order next
How to merge PDFs
- 1Drop two or more PDFs into the upload box above, or click it to browse your device.
- 2Drag the files into the order you want them combined — top to bottom becomes first to last page in the final document.
- 3Click Merge, then download your single combined PDF.
Frequently asked questions
Does merging change the page order or formatting?
No — each page is copied directly from the source PDF into the merged file, so formatting, fonts, and image quality stay exactly as they were.
Is it really free?
Yes — every tool on PaperJamm is free, with no page limits, no watermark, and no account required. There's no premium tier hiding features behind a paywall.
Can I merge PDFs with different page sizes?
Yes — each page keeps its own original size, so you can merge a mix of Letter, A4, or custom-sized pages into one file without anything being stretched or cropped.
Is there a limit to how many PDFs I can merge?
There's no hard limit set by PaperJamm — the practical ceiling is your device's available memory, which is normally enough for hundreds of pages.