Hidden features of Preview on Mac (macOS)


At first glance, a native application “View»For Mac is a simple program for viewing images and nothing more. In fact, “View” contains many interesting features that many people overlook. Some of them will be discussed in this article.

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Group photo editing (size, format (jpg, png, tiff)) in “Preview”

Application “View»Can open multiple files at a time. If you select files in the Finder window or on the desktop, you can open them all in the Preview window. The file icons will be displayed in the pane on the left side of the window.

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Selecting a single file icon and then pressing a key combination ⌘Cmd + A will allow you to make changes to all the necessary files. For example, resize (“Instruments“→”Customize size“).

Preview on Mac (macOS): Hidden Features of the Photo Editor

To change the aspect ratio, highlight images and open the “File“→”Export selected images“. In the export window, click on the option “Format»To select the aspect ratio.

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

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“View” allows you to make various markings on pictures

If you need to make a note or focus on the elements of the picture, open the menu “Instruments“→”Add a mark»Or click on the toolbar button at the top of the application to add text, arrows, etc. to the file. You can undo the previous action using the combination ⌘Cmd + Z

Preview on Mac (macOS): Hidden Features of the Photo Editor

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Adding a signature

Sometimes there are situations when you need to put your signature on a PDF document. In such cases, many users print the document, sign it, and then scan it. “View»Will save you from this annoying process. All you need to do is just press the “Create signature»In the annotation menu and save the signature in the application for future reference.

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

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Password protection

View»Provides the ability to password protect confidential documents. To do this, open “File“→”Export as PDF“→”More details“. Check the box “Encrypt»And enter the password.

Preview on Mac (macOS): Hidden Features of the Photo Editor

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Document protection

In addition to password protection, users can lock documents, preventing others from making changes. To lock a file, click the button with the downward-pointing arrow next to the file name at the top of the window and check the box next to “Install protection“. Other users can still view or copy locked files, but only you can make changes.

Preview on Mac (macOS): Hidden Features of the Photo Editor Preview on Mac (macOS): Hidden Features of the Photo Editor

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Add, remove, or change the order of pages in a PDF document

application “View” allows you to add, remove, or change the order of pages in PDF documents. To add pages, drag the files you want from Finder or from the desktop to the panel with icons in “View“. To delete pages, open the menu “Edit“→”Delete“Or use a combination ⌘Cmd + Xto cut the page. To change the order of pages, select them in the sidebar of the application and arrange them in the desired order.

Add, remove, or change the order of pages in a PDF document

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Remove background (make it transparent) in images

“View” is able to “crop” photos or, more simply, remove the background. Transparency function allows you to select the background of an image (PNG or TIFF, but not JPEG) and remove it. To take advantage of Transparency function, click the toolbox button on the application toolbar. Then click on the “magic wand” button on the left side of the panel and move the cursor to a point in the background. Preview will detect and highlight the borders of the desired part of the image. Then press the key Delete to remove the background.

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

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“View” can crop images

Application “View»Allows you to crop images without resorting to Photoshop, Photos or other photo editors. Just select the desired fragment of the picture, copy it using the combination ⌘Cmd + Cand then open “File“→”New from clipboard“(Or simply ⌘Cmd + N) to create a new file.

The same can be done using the function Trim (in detail):

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

Preview on Mac (macOS): Hidden Features of the Photo Editor

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View previous version of documents

View»Allows you to display all previous revisions of documents. To do this, open the photo and go to the menu “File“→”Back to version“→”View all versions“.

Preview on Mac (macOS): Hidden Features of the Photo Editor Preview on Mac (macOS): Hidden Features of the Photo Editor

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