How many PDFs can I merge at once?
As many as you need. Add all your files at once and merge them in one click.
Merge PDF
Merging PDF files used to mean installing heavy desktop software or paying for a subscription. Today you can combine PDFs directly in your browser in under a minute — for free, with no files leaving your device.
Ready to merge your PDFs right now?
Open PDF Merge Tool →Browser-based tools have three big advantages over desktop software:
Common situations where merging PDFs is useful:
Before merging, rename your files with numbered prefixes (01_intro.pdf, 02_chapter1.pdf) so they're easy to sort and reorder in the tool.
Merging many large PDFs can produce a big output file. Run it through the Compress PDF tool afterwards to reduce the size for email or sharing.
Only need certain pages from a document? Use the Split PDF tool to extract those pages first, then merge the resulting files.
As many as you need. Add all your files at once and merge them in one click.
No. Pages are combined as-is — fonts, images, layouts, and formatting are all preserved exactly.
Yes. Scanned PDFs are just image-based pages and merge the same way as any other PDF.
Yes. Pages appear in the order you add the files, so arrange them correctly before merging.
Merge your PDFs for free — no sign-up, nothing to install.
Open Merge PDF Tool →