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Merge PDF files into one document

Pick the documents, drag them into the order you want, and PDFlick writes them out as a single PDF. Because the merge runs locally there is no per-file size cap and no queue — the twenty-file expense claim goes through as fast as your device can write it.

Coming Soon iOS 26.2 or later · iPadOS 26.2 or later · macOS 26.2 or later

Also searched as: combine PDF · join PDF files · merge PDFs into one · append PDF

How to merge PDF files into one document

On iPhone & iPad

Tap Merge PDF and select the documents you want to combine.
Drag the files into the order they should appear.
Tap Merge — the new document is written as a single PDF.
Save it to your library or share it out.

On Mac

Choose Merge PDF from the sidebar.
Drag PDFs into the list, or add them with the file browser.
Reorder by dragging; ⌘Z undoes a misplaced move.
⌘S saves the merged file, then Reveal in Finder.

What makes it different

Page geometry, rotation and crop boxes are preserved from each source file rather than normalized to one page size.
Documents of different page sizes can be merged; each page keeps its own dimensions.
Output is written as vectors, so text in the merged file stays selectable and searchable.

Merge PDF — questions

Is there a limit on file size or number of documents?

No app-imposed limit. Web tools cap uploads because they pay for the bandwidth and storage; PDFlick processes locally, so the only constraint is your device's free space.

Will merging add a watermark?

No. PDFlick does not watermark output. The only watermark on your document is one you deliberately add with the Watermark tool.

Can I merge only certain pages from each file?

Yes — use Extract Pages to pull out the pages you want from each document first, then merge the results.

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