Combine PDF files without Acrobat, on Windows or Mac

Combine PDFs in the browser, step by step

1. Drop the files on the tool above, or click to choose them. Hold Ctrl (Windows) or Cmd (Mac) to pick several at once, or use “or a whole folder”. You can add more files later; they go to the end of the list.
2. Put them in order. The list shows each file’s name, page count and size. Click Up or Down to move a file; Remove takes one out.
3. Choose bookmarks. Bookmark per file (on by default) gives the result an outline with 1 entry per file, so a long merge can be navigated by the piece it came from, and each file’s own bookmarks sit under its entry. Off, the files’ own bookmarks are kept at the top level.
4. Click Merge and download. The file is named after the first file with -merged on the end, for example invoice-merged.pdf.

Pages are copied as they were: nothing is redrawn or compressed, and every page keeps its own size. A password-protected file asks for its password; the combined file has none. Our test merged a 500-page file, a 48-page report and a 6 MB photo PDF into 551 pages in 0.47 seconds on a laptop.

If the pages inside need a different order after merging, Organise PDF moves, turns and removes single pages.

Why Windows needs a tool for this

Windows 10 and 11 open PDFs in Edge and can print to PDF with Microsoft Print to PDF, but neither combines files: there is no Merge or Combine command in Windows itself (Help Desk Geek and Pureinfotech, checked on 11 October 2026). The workarounds those sites describe are a printer trick that is clumsy past 2 or 3 files and loses links and bookmarks, or installing a third-party app.

The browser is the shortcut. It is already on every Windows PC, and a merge tool that runs inside it needs no install and no administrator rights, which matters on a work laptop.

On a Mac, Preview already does it

If you are on a Mac, the honest answer is that you may not need us. macOS has 2 ways built in, both free and offline:

• Preview. Open the PDFs, turn on thumbnails from the View menu, and drag pages from one file’s sidebar into the other’s; drag a PDF from Finder into the sidebar to add the whole file (Apple, “Combine PDFs in Preview on Mac”, checked on 11 October 2026).
• Finder. Select the files, Control-click, then Quick Actions, Create PDF. Apple’s guide says the files appear in the PDF “in the same order that you select them” (Apple, “Combine files into a PDF on Mac”, checked on 11 October 2026).

2 things trip people up. Preview saves changes to a document automatically, so dragging pages into a file changes that file; Apple suggests File, then Duplicate first if you want to keep the originals. And with Finder, the order is the order you clicked, not the order on screen, so select 10 files in the wrong order and you start again. When you have many files, or want to see the order as a list before you commit, the tool above is easier.

How the options compare

Adobe details from Adobe’s own pages, checked on 11 October 2026 and set out in full on our Acrobat comparison; prices are Adobe’s US prices on an annual plan billed monthly.

Why not just use any online merger?

The usual online mergers upload your files to their servers, and their free tiers come with limits of their own. Adobe’s free online tools, for example, upload to Adobe cloud storage and ask you to sign in after about 1 use. Our comparisons set out the others, each checked against the service’s own pages.

Here there is nothing to limit, because nothing reaches a server: the merge runs inside your browser tab. You can check that yourself. Merge 2 files once, so the engine is kept in the browser, turn Wi-Fi off, and merge 2 more. It still works. Prove a PDF tool is local shows the same check in the browser’s network panel.

What Acrobat is still for

Combining files is not a reason to pay for Acrobat. These are, if you need them every week: editing paragraphs that reflow as you type, sending documents out for signature and tracking them, certificate signatures, comparing 2 versions, and tagging a file for screen readers. getPDF does none of those today. For editing text without Acrobat, see Edit a PDF without Acrobat; for the full list of free tools, the best free PDF tools.

The honest part

Our merge copies pages and the structure that goes with them: each file’s bookmarks, its links between pages, its web links and its form fields, which stay fillable (2 copies of the same form get -2 added to the second copy’s field names, so filling one does not fill the other). What it does not keep is the files’ document properties: the combined file has no title or author, and a file that says it is PDF/A comes out as plain PDF, with a warning. When those matter, combine the source documents in Word or your layout app and export once.

Merge takes PDFs only. To combine photos with PDFs, turn the photos into a PDF first with JPG to PDF, then merge. And the only real limit is your device’s memory, so a phone runs out of room sooner than a laptop.