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Merge PDF Files

Combine multiple PDF files into one document with original text and image quality fully preserved โ€” no recompression.

Drop PDF files here or click to browse

Add 2-10 PDF files. Output preserves original quality (no re-rendering).

What this tool does:

Copies the original pages from every file you add directly into one combined PDF โ€” text stays sharp and selectable, images keep their original resolution. Thumbnails shown below are low-res previews only and are never used in the final file.

How Merge PDF Works

This tool copies the original page content โ€” text, vector graphics, and embedded images โ€” directly from each of your source files into one combined PDF, using the pdf-lib library running entirely in your browser. Nothing is rasterized or recompressed in the process, so the merged file keeps exactly the same text sharpness and image resolution as your originals. You can add up to 10 files, reorder them before merging, and remove any file you added by mistake, all before anything is combined.

Lossless by design

Pages are copied as original objects, not redrawn โ€” text stays selectable and searchable in the output.

Order control

Drag files into the order you want before merging; the final PDF follows that exact sequence.

100% local

Files never leave your device โ€” merging happens in your browser's memory, not on a server.

Frequently Asked Questions

Will merging reduce the quality of my PDFs?

No. The tool copies each page's original content directly rather than rendering it as an image, so text and images keep their original quality with no recompression.

Can I merge password-protected PDFs?

Not directly โ€” an encrypted file can't have its pages read for copying. Remove the password with a PDF reader first, then merge as usual.

Is there a limit to how many files I can merge?

Yes, up to 10 PDF files per merge. If you need to combine more, merge them in two batches and then merge the two results together.

Do my files get uploaded anywhere?

No. Everything happens locally in your browser using JavaScript โ€” your files are never sent to a server.