Merge PDF Files
PDF Merger combines two or more PDFs into one file with pdf-lib entirely in your browser, so no Adobe Acrobat, no upload and no watermark are involved.
Drag and drop, or click to upload PDFs
At a glance
- Accepts
- Two or more PDF files
- Outputs
- A single merged.pdf, pages copied without re-encoding
- Where it runs
- Entirely in your browser, on your device
- What leaves your device
- Nothing - the file never leaves your device
- Limits
- No size or count cap; bounded by your device's memory; needs at least two files
- Account
- Not required - there is no sign-up
- Price
- Free, with no watermark and no usage cap
Merge PDF Files combines two or more PDFs into a single file - no Adobe Acrobat or other software required. Drag them in, reorder them if needed, and download the result. It runs on pdf-lib, a JavaScript PDF library that works entirely inside this browser tab; your files are never uploaded to a server or stored anywhere.
How to use it
- Drag and drop, or click to upload two or more PDFs.
- Use the up and down arrows to put the files in the order you want.
- Remove any file you don't need with the X button.
- Click "Merge PDFs" to download the combined file.
Frequently asked questions
How do I merge PDFs without Adobe Acrobat?
Just drag your files into this tool and click merge - no Adobe Acrobat, no other software, and no account needed. It runs entirely in your browser using pdf-lib, a free JavaScript PDF library.
Are my PDFs uploaded to a server?
No - merging runs entirely in your browser using pdf-lib, a JavaScript PDF library. Your files never leave your device.
How many PDFs can I merge at once?
As many as you like, as long as it's at least two - drop them all in and they combine into a single PDF in one pass.
Can I change the order before merging?
Yes - use the up and down arrow buttons next to each file to reorder them. The final PDF follows the order shown in the list.
Does merging reduce PDF quality or file size?
No - pages are copied directly into the new file with pdf-lib, not re-rendered or recompressed, so there's no quality loss.
Do I need to sign up or install anything?
No - there's no account and nothing to install. Upload, reorder, merge, and download.
What's the merged file called?
It downloads as merged.pdf. Rename it afterward if you want something more specific.