Mac Quick View is an incredibly useful way to preview a file without completely opening it. In macOS Mojave and above, you can quickly edit files in the Quick View pop-up without having to open a third-party app.
Editing and Marking Images and PDFs
All preview editing and marking features are now available directly in the Quick Look menu. This means you can crop, rotate, tag with text, and even add a signature without previewing the image. The same applies to PDFs.
First, open the Finder app (File Explorer) and locate the image or PDF file. If it is on your desktop, click on it to select it. After selecting the image or PDF document, press the spacebar to open it in Quick View.
The "Quick view" window opens above everything. You can press the Esc key to return if you select the wrong item or you do not want to edit it.
Two buttons appear next to the Open with Preview button. The first button is a quick link to the Rotate function. Click on it and the picture is immediately rotated 90 degrees (in the left direction). This is an incredibly fast way to correct a misaligned image.
The "Markup" button appears next to it. If you click on it, a new toolbar will appear at the top. If you've already used the preview app, you'll see the editing options.
From the left you will find The Sketch, Draw, Shapes, Text, Highlight, Character, Shape Style, Border Color, Fill Color, Text Style buttons "," Rotate to the right "," Rotate to the left "and" Trim ".
If you want to crop a photo, click the crop button and use the handles to resize the image to reduce. To insert a signature into a PDF document, click on the "Sign" button and then select your saved signature.
To add arrows or a box, click the "Shapes" button and choose a shape from the drop down menu. You can then click Shape Style to make it thinner or thicker. Click the Border Color button to change the color of the shape.
When you have finished editing, click the Done button.
All your changes will be saved in the image or PDF. Quick Look also closes and brings you back to a Finder window or desktop.
RELATED: Use your Mac's Preview app to crop, resize, rotate, and edit images
How to slice and rotate videos
Quick Reference Guide in macOS also includes a feature for turning and trimming videos. Search the Finder for a video and press the spacebar.
Two icons appear in the top toolbar next to the button to open the video in the default app. The first button is the Rotate button, which quickly rotates the video 90 degrees (to the left). The second button is a crop button that displays a video editing tool.
In, a video timeline and scrubber appear at the bottom of the window with two yellow handles on each side of the timeline. Click and hold the handle on the left side of the Timeline and drag it to where you want to start the video.
The same applies to the right handle for where you want to stop the video. If you have made a mistake and want to return, click on the "Reset" button.
Now click on "Done". The portion of the video that is outside the yellow handles is removed. The video is tailored to the new start and end points.
If you want to make more specific edits, you can use the QuickTime app on your Mac.
RELATED: Use the QuickTime of your Mac app to edit video and audio files