How to merge PDF files into one, privately in your browser
Updated 2026-09-30
- Open Merge PDF and add the files.
- Put them in the order the recipient expects.
- Merge and download. The files are processed on your device.
Tips for applications
- Check whether the portal has one upload field per document or one for everything. Merge only when it asks for a single file.
- Check the combined size against the portal limit. See upload limits by portal.
- Do not merge password-protected files: USCIS, for one, asks you not to encrypt or password protect uploads.
- Use Reorder PDF pages or Delete or extract pages to tidy the result.
Frequently asked questions
- Are my PDFs uploaded to a server?
- No. Merging runs locally in your browser.
- Can I merge scans and photos together?
- Yes. Turn photos into a PDF first with JPG/PNG to PDF, then merge it with your other PDFs.