Just highlight a section of the image you want, hit Command-C to copy that selection and then go to File > New from Clipboard. If you have an image and want to perform a quick crop, you can use Preview instead of opening Photoshop, Photos or another proper photo editor. If the foreground object is large and runs to the edge of the image, you may need to repeat this process for the different segments of the background to remove all of it. With the area selected as you wish, hit the Delete key to remove the background. If not, just try again until it does, although it won't work with images that lack clear edges. Preview should detect the edges of that area and highlight that portion of the background. Next, click the magic wand button on the left side of the toolbar, and then drag your cursor across a portion of the background image. To use Instant Alpha, click the toolbox button to open Preview's annotation toolbar.
No matter the name, the tool remains the same: it lets you highlight the background of an image (PNG or TIFF but not JPEG) to delete the background, with the app smartly detecting the edges between background and foreground object. Preview took the magic wand tool from Photoshop and renamed it Instant Alpha. Lastly, you can highlight and drag and drop a page or pages in the sidebar to change their order. Going the other way, you can highlight a thumbnail and go to Edit > Delete to remove it or Command-X to cut it.
#PREVIEW APP FOR MAC PDF#
Add, remove, reorder pagesįor multipage PDFs, you can drag a PDF from Finder or your desktop to the sidebar of thumbnails in Preview to add a new page or pages to the PDF. Others will only be able to view or duplicate the file, but you will still be able to unlock it to make changes. To lock a file, click the little down-arrow button next to the file name at the top of the window and check the box for Locked.
#PREVIEW APP FOR MAC PASSWORD#
In addition to password protection, Preview lets you lock files so that others can't make changes without duplicating the file first. Next, click the Show Details button, check the box for Encrypt, and enter a password. When you add your signature to a document, you can drag to reposition and resize it so it fits just so when you are asked to sign on the dotted line.įor sensitive documents, Preview lets you password-protect files. Preview then saves your signature for future use. If you have yet to do so, you can click the Create Signature button and sign your name using your Mac's touchpad. On the annotation menu is a button to add your signature to a file. If you have a PDF to sign, Preview can save you the maddening steps of printing it out, signing it and then scanning it back to your Mac.
Don't like the previous change? Hit Command-Z to undo it. You can adjust the size and color of your annotations from the annotation toolbar, and you can drag to move your annotations. Need to markup a screenshot to explain or highlight something? Go to Tools > Annotate or click the little toolbox button at the top of Preview and you can add arrows, ovals, rectangles, text and more to a file. On the export window where you choose the destination for your export, hit the Options button to choose the file format.
Or you can change the file format - PNG to JPEG, for instance - by highlighting the images and going to File > Export Selected Images. You can, for example, resize images by going to Tools > Adjust Size. If you click to select one of the thumbnails and then hit Command-A to select all, then you can make changes to all of the files. Thumbnails of the files are shown in the sidebar along the left edge of the window. If you highlight multiple files in Finder or your desktop, you can open them all in one Preview window. Preview can open more than one file at a time. To help Preview form a more positive view of itself and help you get the most out of the app, I present 9 things Preview can do beyond showing you previews of files.
#PREVIEW APP FOR MAC MAC#
This stock Mac app goes around calling itself "Preview" when it can do so much more than just preview files. The Preview app ought to have a better opinion of itself.
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