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I often have to do this with images of plots of data. I use the command line tools that come in the Imagemagick package; I think I installed it on my system with MacPorts. You could also choose to install with brew (brew install imagemagick). The actual tool you want to use from Imagemagick is the convert tool. If you have your two 320x428 images, say a....


This solution uses only Preview and may be handy if you can't install software on a machine. It is, however, not elegant. Say your images are called A and B. Then: Open A in Preview. Select All, Copy. In the Tools menu, select Size and adjust the width to the sum of the width of the two images (in your example, 640 px). Keep the height. This will result ...


Skitch can do this quickly. See? Just click the blur button in the side bar and draw over your image to obscure things.


I'm a little surprised that no one has mentioned the easiest, cheapest, and least technical option: Automator First, open Automator, which is in your Applications folder. Next, choose to create a new workflow: Next, add the following steps to the workflow by dragging and dropping: When you run this, Automator is going to: pop up a window asking ...


One option would be to Cut and paste using ⌘-ALT-X and ⌘V after resizing the canvas size in destination file. The pasted image doesn't seem to get snapped to canvas edges now. Increasing canvas size by cropping doesn't seem to be possible.


You can use Preview in two ways: Use the Annotation tool to draw a filled rectangle over the area you want to hide. You can select the fill color. Use the Selection tool to select the area you want to hide and then cut it. The area will be replaced by a gray area (or whatever color is set as window background in Preferences/General).


It sounds like you’re describing PlaceIt.


You might install ImageMagick with brew install imagemagick and then use something like this: convert -delay 4 *.png output.gif -delay 4 sets the delay between frames to 0.04 s. See for more information.


You could try Paintbrush (free). As quoted from its website : Paintbrush is a simple paint program for Mac OS X, reminiscent of Microsoft Paint and Apple’s own now-defunct MacPaint. It provides users with a means to make simple images quickly, something which has been noticeably absent from the Mac for years.


I like to use ImageMagick. sips and Automator (which use an identical resizing method) make images look too blurry without additional sharpening in my opinion. You can install ImageMagick with brew install imagemagick after installing Homebrew or with sudo port install imagemagick after installing MacPorts. Then run a command like this: mogrify -filter ...


How to do this with the tools to hand: Preview .app and Screen Capture. Open up any Application that lets you have a clean neat white background. Not strictly necessary but makes life easier. Make a screensnap: command shift 4 > drag out an area 640 x428 pixel (the cursor shows the dimensions). This will be saved as a .png to your Desktop *. Double ...


ImageMagick is a command line interface program and made for this purpose. The use and installation of ImageMagick can intimidating, but this image manipulation package is the most powerfull I have encountered so far. As the installation from source can be a hassle for native OS X users I advise you to use Homebrew. To install ImageMagick using Homebrew run ...


You can do this simply with Preview. Open the first picture. Choose Tools > Rectangular Selection. Select the whole picture. Copy the selection (choose Edit > Copy). Choose Tools > Adjust Size. Turn off the lock for proportional changes. Select pixels as your unit. Double the width of your picture. At this point, you have your unscaled picture in the ...


This works well for me: Select all (cmd+A) and cut (cmd+X) the image from its canvas (convert to png if asked). Resize the image as desired from the "Tools" menu (unlock the proportions if desired) Re-paste original image from the clipboard and move it where you want it on the resized canvas Use cmd+- if necessary to zoom out (you'll see checkerboard ...


Pixelmator is a great alternative to Photoshop and similar to on windows


Use Apple's built-in to capture screenshots, Apple's built-in to crop, and the open-source Inkscape to annotate the bitmap.


You may use ImageMagick in order to crop from command line. That way you may include the command inside an Applescript, or call the command directly from terminal. You can install it following these instructions and then you crop all images inside a folder, given: convert '*.jpg' -crop 120x120+10+5 thumbnail%03d.png where 120x120 is the resulting size ...


Acorn ($49 or free with reduced features) Acorn is what you want.


Nope, not possible within Skitch. The quickest workaround I've found to achieve that is using Keynote as a canvas, so you can combine the image in no time : open a new 'White' theme in Keynote drag & drop the 2 images from Skitch to Keynote align the images in Keynote, resize, do some edits if necessary take a snapshot with Skitch


You can use an Automator Workflow. Something like this: Sort Finder Items step will sort image names descending (IMG_0003.jpg, IMG_002.jpg, IMG_001.jpg). Make Sequential step will rename them sequentially (IMG_0001.jpg, IMG_0002.jpg, ...). Copy Finder Items step is optional, just to be sure not to mess with original files.


Here's what I found. Some are free, some aren't. Scenery


The best method I have found is: Take a screenshot that is larger than your image you are working on, I usually take a shot of an empty text document so that it is entirely white. Paste your image onto the new image, and then add your other pasted image as well. Select the new combination image and copy it and make a final image by creating a new one from ...


I think it’s too subjective. Anyway, probably the two candidates are: 1) You don’t have Photoshop experience (or want to get far from it): Acorn is for you. 2) You know Photoshop and have some experience with it: Pixelmator will make you feel more at home.


PlaceIt is really powerful if you can afford it. But I like Frame App - it's free and fast and works well. No fancy backgrounds, just mockups.


Several people have mentioned ImageMagick. Here is a recipe: For simplicity, assume all the files are in one folder (and the folder contains nothing else). Open a terminal window, cd into this folder, then run mkdir ../resized for x in *.jpg; do convert -geometry 800x600 $x ../resized/$x where you replace the 800x600 by whatever size you want. Advantages ...


Here's one way I just managed to solve this with. Disclaimer: If you are not familiar with the Unix command line, you may want to pick one of the GUI-oriented solutions that others have posted. Install the ImageMagick graphics suite, e.g. with Homebrew: brew install ImageMagick Alternatively, use MacPorts ( sudo port install ImageMagick) or the Mac OS ...


You don't need anything special at all, you already have the tools you need to give it a go - frankly it's worth a pop in Preview. I'll have a quick and dirty go in this answer and see how we go. I've taken 2 photos, one with my eyes open, and one with them shut. I will transfer the eyes from one to the other to create a composite picture of the two. ...


If you prefer an all-in-one solution to the Grab + Preview combination, try Skitch. The lite version is free and should be enough for your -described- needs.


Check out It has an "intelligent" text blurring tool that changes the amount of blurring based on the font size of the text being blurred. It's an online web app and it's free. Here is a link to


Yes, Preview in OS X 10.10 (Yosemite) has a freehand tool. Access it within Preview from the "Markup Toolbar" icon of the .JPG or .PDF file you have open. When you click on that icon, the Markup toolbar appears, and the freehand "sketch" tool is the 3rd icon from the left, in blue in the image below. and it offers a smoothing option as well as ...

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