Merge PDF
Upload two or more PDFs and merge them into a single file. Everything happens in your browser — your files are never uploaded to a server.
By The Paper Room Editorial Team — PDF Tools
Frequently asked questions
Is it safe to merge PDFs online?▼
Yes — this tool runs entirely in your browser. Your files are never uploaded to any server. The merging happens locally using JavaScript, so your documents stay private.
Is there a limit on how many PDFs I can merge?▼
There is no hard limit. You can merge as many PDF files as your browser's memory allows. For very large files (hundreds of megabytes combined), performance may vary by device.
Will merging change the quality of my PDFs?▼
No. The tool combines pages at the file level without re-rendering or compressing content. Text, images, and vector graphics retain their original quality.
Can I reorder the files before merging?▼
Yes. After selecting your files, you can drag them into any order before merging. The final PDF follows the order you set.