Re: The following script will resize the canvas to square bas... (2025)

/t5/photoshop-ecosystem-discussions/batch-resizing-photos-of-different-dimensions/td-p/11074302 Apr 23, 2020 Apr 23, 2020

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Image Processor will not change a images aspect ratio to square. The image's aspect ration is preserved. The image is resized via interpolation fit with within the square size you set.

JJMack

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Actions can not handle sizing of document well when they have various document Aspect Ratio and sizes. To size them to a common aspect ratio and size you need to use Photoshop scripting. A script cancrop the images to the outputimageAspect Ratio and resample or set the print resolution of the crop to the output image size soit will have the correct numberof pixels and the correct print resolution.

I wrote two Photoshop Plug-In Script Aspect Ratio Slection "AspectRatioSelection.jsx" andLong Side Print Length "LongSidePrintLength.jsx" Youcan use in action to enable you to create actionthat will do what you want to do. Theyare in my craftingAction Package. The Resolution is changedfor the crop the imageis not resampled via the plug-in after the aspect ration selection crop is made.

Crafting Actions PackageUPDATED Aug 10, 2014 Added Conditional Action steps to Action Palette Tips.
Contains

• Action Actions Palette Tips.txt
• Action Creation Guidelines.txt
• Action Dealing with Image Size.txt
• Action Enhanced via Scripted Photoshop Functions.txt
• CraftedActions.atn Sample Action set includes an example Watermarking action
• Sample Actions.txt Photoshop CraftedActions set saved as a text file.
• More then a dozen Scripts for use in actions

Example
Download

JJMack

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The following script will resize the canvas to square based on the longest edge, effectively "letterboxing" a landscape image or the opposite on a portrait image. The canvas extension colour is white. You can remove the // comment double slashes from the code to enable resizing, then change the dimensions from 1020,1020 to whatever pixel size you require.

/* https://forums.adobe.com/message/6424562#6424562 */#target photoshop// Save the current ruler units and set to pixelsvar savedRuler = app.preferences.rulerUnits;app.preferences.rulerUnits = Units.PIXELS; var backgroundC = new SolidColor(); backgroundC.rgb.red = 255; backgroundC.rgb.green = 255; backgroundC.rgb.blue = 255; backgroundColor = backgroundC; var doc = app.activeDocument; doc.resizeCanvas(Math.max(doc.width,doc.height),Math.max(doc.width,doc.height))// Uncomment the line below to fit to a 1020px square rather than longest edge//doc.resizeImage(1020,1020) // Restore the ruler unitsapp.preferences.rulerUnits = savedRuler;

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Resize the canvas to the smaller side will crop the image square. Also contentaware fill can fill the added white canvas above. I prefer crop.

JJMack

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Agreed JJMack, for anybody wishing to try this, just change both instances of:

Math.max

to

Math.min

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Thank you for this! However I'm having trouble finding a way to put this script into Photoshop. I downloaded "Sublime Text" to allow me to save a js file but it says I don't have permission. How do I get this code into Photoshop as the correct file type on a MacBook Pro? I need to do this before I move this file into the Photoshop Scripts folder right?

Thanks in advance!

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Any plain text editor will do. Be careful of Apple TextEdit. It has both plain text and rich text modes. BareBones Softwared BBEdit or Atom are also good choices for text editing on the Mac.

More here on scripts:

https://prepression.blogspot.com/2017/11/downloading-and-installing-adobe-scripts.html

Downloading JavaScript Files Many legacy ExtendScript-based scripts are offered in .js or .jsx or even .jsxbin formats. Simply downloa...

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