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Combine files

Combines multiple PDFs into one output.

Merge combines multiple PDFs into a single document. Use Organize afterward if you need to reorder pages.

Step by step

Combining several PDFs into one

Queue the files, put them in order, and take only the pages you want from each.

The Combine PDFs panel listing two files in order, the open document marked active, with an output filename box and a Combine 2 files button.
Two files queued. The number on each row is its position in the output, and the button counts the pages it is about to write.
  1. 1Open one PDF, then add the restThe document you already have open seeds the list as the first row, badged “active”. “Add PDFs” opens a multi-select picker for the others. With nothing open the panel tells you to open one first.
  2. 2Drag the rows into the order you wantThe grip handle on the left of each row reorders it; the number beside it is that file's position in the output. The list is the order, top to bottom.
  3. 3Take only some pages from a file, if you want to“Pages…” on a row opens a range box that defaults to all — type something like 1-3 or 1,4,7-9. A range that parses but selects no pages BLOCKS the combine and names the file, rather than quietly dropping it from the output.
  4. 4Watch for the form-fields warningIf any file you queued has fillable form fields, a notice appears: combining copies pages, not the form tree, so the values stay visible but the merged PDF stops being fillable.
  5. 5Name the output and combineThe filename box defaults to merged.pdf. The button reads “Add at least 2 files” until there are two, then counts what it is about to write — files and total pages — so you can check the arithmetic before you press it.

Every step above was read out of the app's own source, and a test fails if the control it names is renamed. The picture is a real capture of the running workspace at 1280 × 800, signed in to nothing and holding no licence — but it is taken by hand, not on every build, so read it as the shape of the panel rather than proof of today's release.

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Things people ask for this
merge PDFscombine these filesjoin documents into one PDF

Typed into the workspace command bar, any of these opens this tool. They are the assistant's own routing examples, not a rewrite of them.

Also called: merge · combine pdfs · join pdfs · append files · assemble documents