Nov 12

Just click on the little toolbox in the Toolbar to open an extra menu that will allow you to type, add shapes, and draw on the pdf document. See this article for more information on editing a pdf.

Clicking on the toolbox icon will open up an extra toolbar so that you can edit the PDF document.

Clicking on the toolbox icon will open up an extra toolbar so that you can edit the PDF document.

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16 Responses to “How to merge and edit PDF documents in macOS Sierra”

  1. Paul says:


    In attempting this I find that Preview continues to treat the 2 documents as 2 documents just combined in the one column. Not sure my question makes sense. :)
    I’d like them to be treated as 1 document.

    • Paul says:

      I think I just solved this. You have to drag the second thumbnail directly onto the first thumbnail & not just below it.

  2. Wayne says:

    Paul do you have Sierra? Because the way you describe (dragging on top) is the way it has worked in every OSX so far, but in Sierra, for me anyway, I don’t need to drag on top to merge, I can drag below or anywhere. That’s not how it works for you?

    I have Preview 9.0

  3. Brian says:

    I’m trying to edit a pdf document. i.e., change some words.
    I’ve opened the toolbox but none of the new menu items seem to have anything to do with actually editing words and sentences.

  4. Aaron says:

    After dragging one pdf to the open previewed pdf, it still treats the pdfs as 2 separate documents once i close preview

    • Wayne says:

      Read these instructions more carefully. If that fails try printing the document then select ‘save to pdf’.

      • Don says:

        You are incorrect Wayne. I’ve read this (and many other) articles multiple times and still cannot get it to work properly.

      • Wayne says:

        I just tried it and it works.
        Are you sure you are using Mac OS Sierra (10.12)?
        Do you get a little green plus sign when you drag one page into the other document?
        What is not working?

  5. Patty says:

    The only way I got this to work on OS Sierra was to click Print and then in the bottom left corner selected “Save as PDF”

  6. Paul says:

    Thank you, thank you, thank you!!

  7. Silvester Fairchildzd says:

    Thank you for this sharing, really helpful. I used to merge multiple PDF files with Acethinker PDF Converter, it works pretty well. You just need to launch the app and Go to “Other Tools” tab to choose the “Merge” button. Then, click the files that you want to combine together or simply drop them into the selection box. Click “Convert” will start the combine process, once it’s done, you can save it to your computer. Share it here as an alternative solution.

  8. Randall says:

    Thank you–the first method did not work, but the alternate method of “printing” did.

  9. David says:

    Really nice post: very powerful tools in Previewer. If you had to merge lots and lots of files (e.g. 10+) you can always try Automator which comes with the OS. This allows you to set up a workflow to first ask Finder for items (i.e. your PDFs), then merge them (Combine PDF Pages) before finally moving them (Move Finder Items) to the desktop or some other place where you can find them. Over kill for most applications but sometimes useful to know.

  10. Ken says:

    Maybe the author can amend the article. As one of the posters said, you have to drag the second (and/or subsequent files) ON TOP of the existing file in the thumbnail window, not just underneath. If it’s underneath, it’s treated as a separate document.

    Otherwise the Print/Save as PDF works fine as well.

    • Wayne says:

      The behaviour changes with pretty much every OS that Apple releases. Some you drag on top of and some you drag underneath. So you need to pick the exact article for the OSX version that you have! This article is for Sierra.

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