Merge PDF files online, free

Combining a cover letter with a CV, a set of invoices, or scanned chapters? Drop the files in, set the order, merge. Unlimited files, no watermark.

No upload. No watermark. No sign-up. Every tool mentioned here runs inside your browser.

Tips for a clean merge

Files merge top to bottom — use the arrows to reorder before merging. Mixed page sizes are fine; each page keeps its own dimensions.

If the result feels heavy, run it through Compress PDF afterwards. If you only need part of a document, split it first so you are not merging pages you will delete later.

Why merging locally is different

Most online mergers upload every file to a server, join them there, and send back a link. Here the join happens in memory in your tab — which is why there is no file-count limit and no waiting queue.

Questions

Is there a limit on how many PDFs I can merge?

No file-count limit. The practical ceiling is your device memory.

Will bookmarks and links survive?

Page content, images and text survive. Cross-document links and outlines are not re-built by the merge.

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