If you want to find out how to merge PDF files on Mac without resorting to third party applications, know that you can do it all with Preview, the software that the Mac operating system uses by default to open photos and documents in PDF format. How? Now I'll explain it to you.
Open the first document you want to merge, click on the button Vista che si trova in alto a sinistra e seleciona la voce Miniature from the menu that appears. You will immediately be shown a bar on the left side of the window with a preview of the PDF you just opened. At this point, drag all the documents you want to merge into the Preview sidebar with the mouse.
If, on the other hand, you want to delete, move or reorder pages (e.g. by moving the page of a specific document to the end of another), click on the dart which is next to the name of each PDF in the Preview sidebar so that you can view the thumbnails of all the pages that make up the various documents. Then arrange the page previews in the order that suits you best. If you want to delete a given page, click on its thumbnail and then press the button Backspace sulla tastiera of the computer.
When the operation is complete, it calls the command Stampa ... by selecting the appropriate item from the menu Fillet or, if you prefer keyboard shortcuts, use the combination cmd+P. In the window that opens, select the item Save come PDF ... give menu to tendin PDF located at the bottom left. So choose the folder in which to save the document, type the name you want to assign it in the appropriate text field and click on the button Save to create your “merged” PDF.
PDF Toolkit +
If you find the above procedure a little too complex and if you are willing to resort to using third-party tools, you can merge Mac PDF files using PDF Toolkit +. It is an extremely complete and easy to use application that allows you to edit PDF files on Apple computers in various ways: by merging or removing document pages, by compressing their content, extracting images and much more.
The application is fully translated into Italian and is extremely intuitive, so it will only take you a few minutes to fully understand how it works. You can find it on the Mac App Store at a price of 2,29 euros.
To download the application on your computer, then connected to the dedicated online Mac App Store page using the link I have just indicated, press the button View in the Mac App Store and then click the button 2,29 euros / Install the app attached to the Mac App Store window on your Mac desktop. If prompted, enter the password associated with your Apple ID and confirm the operation.
Next, start the application by invoking it from Launchpad after that you can merge two or more documents with PDF Toolkit + by selecting the tab Concatenate located at the top left and dragging the files to be concatenated in the program window. Then reorder the PDFs using the mouse and click on the button Concatenate! to start saving the "merged" document. Easier than that?
PDF Candy is a free online service that has a beautiful user interface, completely translated into Italian, and does not impose very strict limits in terms of maximum file weight and daily use.
You ask me how to use it? Nothing simpler! First of all, go to the website of the service using the link I gave you a few lines above, then drag the files you want to join together in the browser window. If you prefer, you can also "manually" select the PDFs to work on by clicking + Add file or drag and drop (*. Pdf) or you can upload it from Google Drive o dropbox, depending on the service you use, simply by clicking on the respective icons.
Once the upload procedure is complete, order the PDF pages as you see fit by clicking on their preview and, continuing to hold down, drag them to the desired position and then complete the procedure by pressing the button Merge N files (instead of N you will find the exact number of PDF files that the service will join) and wait a few moments for the conversion to start and be completed.
To download the unified PDF on your Mac, click on the button Download PDF files or click on the icons of supported cloud storage services to save it directly online to them. The unified document will be stored in the folder Download of your Apple computer (provided that, even in this case, you have not changed the default settings of the web browser you are using).
You can also try Online2PDF, another “very popular” online service that allows you to merge up to 20 documents for a total weight of 100MB. It's free and you don't need to create an account to use it. The service also winks at privacy by deleting all the files that are uploaded to its servers within a few hours of uploading. Not bad, right?
To merge your PDF files with the service, link to its home page and then drag the documents onto the button Select files or click on them to select them manually.
When done, choose the item Merge files from the drop-down menu mode: and then indicates from the drop-down menu How to: how you intend to merge your files by choosing between one after the other or mixed and alternating (in this case the pages are taken alternately from the documents, for example if the front / back documents are cleared).
Finally, click on the button Converted which is at the bottom so as to start the upload procedure first and then the file unification procedure. The output document will automatically download to your Mac, even then in the folder Download (always if you have not changed the default settings of the web browser in use).
If you want, before downloading the converted file you can also reorder the documents to be merged by moving their icons by left clicking and dragging them, while to change the order of the pages within each PDF you can use the button with the icon of the scissors. I also point out that by clicking on the tabs Compression, Protection e Header / Footer of Online2PDF you can customize the output document by adjusting, respectively, the quality, the resolution, the permissions related to editing and printing and adding to it headers or footers.How to merge PDF files Mac