Are you a MAC user and you have multiple PDF files that you want to combine into one big file without using third party software? Here is a simple steps to do this: 1. Open a PDF in Preview. 2. If you want to save it as another file Click File > Duplicate then save it as a new file. [if not proceed to step 3] 3. Choose View > Thumbnails to show page thumbnails in the sidebar. 4. Scroll down up to the last page to indicate where to insert the other document, then select a page thumbnail. 5. Choose Edit > Insert > Page from File,* select the PDF that you want to add [note: you can select multiple files by pressing Command key while choosing the PDF files, then click Open. 6. To save, choose File > Export as PDF. [or Simply save the file as is] 7. Now you have one big file of PDF docs into one. I hope it helps.
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