Nov 12

Preview app

Apple’s built in pdf reader app called ‘Preview’ can merge 2 PDF files and edit PDF files. In macOS Sierra 10.12 all you need to do is drag the thumbnails that you want to merge from one PDF document to the other and then save the document.

Read on for some screenshots of what this looks like.

How to merge 2 pdf files

Apple have made a change in Preview in macOS Sierra so that when you drag a thumbnail from one PDF document to another, that page is automatically merged into the new PDF document, no matter where you drop it.  This makes it really easy to merge two PDF files.

  1. Open the first pdf file.
    (Make sure it opens in Preview)
  2. In the View menu select ‘Thumbnails’thumbnails
  3. Either:
    • Drag the a new pdf file from the desktop into this thumbnails window OR
    • Open the new pdf file then drag a page thumbnail across into this thumbnails window.

Here is a picture of the thumbnails window open, and I am dragging a PDF document into the thumbnails window:

drag-thumbnail

4. Select “Save” from the File menu to save the new merged document.

 

An Alternate Method of merging pdf files.

Some people are reporting that this method doesn’t work. For some people even Apple’s own instructions do not work.  If ‘saving’ the pdf file doesn’t work for you, then after you merge the files, instead of choosing ‘Save’ go to File menu and select ‘Print.’ Then don’t print, but select ‘Save as PDF.’ This will save the merged documents as a new pdf file.

If ‘Save’ doesn’t work, select ‘Print’ then ‘Save as PDF’.

 

I have tested both methods (Save and Print)  on my Mac and they both work. You may have to try both and see which works for you.

Editing a PDF.

You can also edit a PDF document in preview. Read on for how to Edit a pdf file.

CONTINUE READING >

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

  1. Paul says:

    Hi.

    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.

  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!!

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