PDF Merge — Guide
Combine multiple PDF files into one — in upload order, page count shown before you start. Free, private, everything happens in your browser.
What it is and when to use it
PDF merge concatenates documents: every page of the first file, then every page of the second, and so on. Because the merge happens by copying the original page objects (not re-rendering), text stays selectable, fonts stay embedded, and page dimensions keep their original sizes — a landscape A3 page stays landscape A3 next to a portrait A4. Typical uses: assembling scanned receipts into one expense file, combining report chapters written separately, or attaching a cover letter to a CV.
Combines multiple PDF files into one document, preserving upload order.
How to use it
- Select two or more PDF files
- Click merge
- Download the combined PDF
Things that trip people up
- The output page order is exactly the order you added the files — drag to reorder before merging if needed
Questions people ask
- Does merging change the page quality?
- No. Pages are copied as objects, not re-rendered or re-encoded — text, fonts and images are carried over byte-for-byte into the merged file.
- Is there a file size or count limit?
- The browser is the only limit: it needs to hold all input files and the output in memory at once. Dozens of typical documents merge fine; hundreds of multi-hundred-megabyte scans may exhaust the tab.
- Are my PDFs uploaded anywhere?
- No. Parsing and merging run entirely in your browser — nothing leaves the page, which matters when the documents are contracts or scans of IDs.
Next steps
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