PDF Merge
Combine several PDF files into a single document, in the order you add them, without uploading them anywhere.
Your input stays in your browser. Nothing is uploaded.
About this tool
Pages are copied from each file into a new PDF with pdf-lib, so text, vector graphics, and images keep their original quality. The page order follows the order of the files. Bookmarks (the document outline) are not carried over, and interactive form fields may not work in the merged file. Password-protected PDFs are not supported.
How to use it
- Add two or more PDF files, in the order you want them.
- Preview the merged document.
- Download merged.pdf.
Examples
Application pack
Merge a cover letter, a CV, and certificates into one PDF for an application portal that accepts a single file.
Scanned pages
Combine single-page scans into one document before sending.
FAQ
Is there a file size limit?
There is no fixed limit, but everything is processed in your browser's memory. Very large files may be slow on phones or older computers.
Will the quality change?
No. Pages are copied, not rasterised or recompressed.
Are my PDFs uploaded?
No. Merging happens in your browser.

