Most "merge my PDFs" moments happen under mild time pressure: an expense report due in an hour, a set of scanned forms that need to go in as one attachment, a multi-part contract that arrived as five separate emails. You don't need Adobe Acrobat's subscription for this — you need the files in the right order and somewhere to upload them.
The one thing that actually matters: order
A merge tool combines files in the order you select them — there's no drag-and-drop reordering step after upload, so getting the order right happens before you click upload, not after. Most file pickers select multiple files in the order you click them if you hold Ctrl (or Cmd on a Mac) and click one at a time, which is the most reliable way to control it.
If you're merging a folder full of scans that need to stay in a specific sequence, the easiest fix is to rename the files with a numeric prefix first — 01-cover.pdf, 02-page.pdf, 03-page.pdf — so a simple "select all" in file-name order comes out correct. It's a 30-second step that saves you from re-uploading.
Using the tool
Our Merge PDF tool accepts 2 to 10 PDF files at a time, up to 20MB each. Select them in the order you want them to appear, upload, and you'll get one combined PDF with every page from every file, back to back, in that order. Nothing is re-compressed or altered — pages come through exactly as they looked in the source files.
A few things worth knowing
- Password-protected PDFs won't merge — the tool needs to actually read each file's pages, so remove the password first if one of your source files has one.
- 10 files per merge, not per session. If you have more than 10, merge them in two batches, then merge the two results together.
- Nothing is stored afterward. The merged file is available to download for a short window and then deleted — there's no library of past merges to manage or clean up.
Try it here: Merge PDF.