How to batch compress images in Photoshop for faster press

This User Guide will assistance yous to compress batches of images. This is particularly useful if you intend to send multiple high-resolution images to print as part of the same print chore – eg equally a contact sheet. Combining multiple big images into i print job tin can generate a large file; the larger the file, the more slowly it volition print on the GSA Library MFDs (printers/photocopiers).

STEP 1

Before you begin, create a folder containing all of the images that you wish to compress.

Pace 2

Open Adobe Photoshop, then click File > Scripts > Image Processor

Stride 3

You will run into the post-obit window. Nether Select the images to procedure, click Select Binder and then navigate to and select the image binder that yous just created.

compression_1

Photoshop will create a new folder in the original location, in which to save the compressed images. To alter the destination, under Select location to salve processed images, check the box and click Select Binder .

STEP four
compression_2

In the File Type section, you tin accommodate settings which will reduce the size of your image files. To print using the GSA MFDs (printers/photocopiers), select Save as JPEG – this will ensure a smaller file size, without a visible reduction in print quality.

  • In the Quality field, enter a number between 1 and 12. The lower the number the smaller the file size. Whether or not yous detect a reduction in print quality will depend on your original file and the calibration at which you lot are printing. Y'all may wish to examination this.
  • Check the Resize to fit box and set the maximum width and height for your compressed images.

You will not see any increase in print quality in a higher place 300dpi when using GSA Library MFDs. Y'all can therefore calculate appropriate dimensions for your images, and resize them then that they will print at 300dpi at the size at which you require them.

For instance
You have a batch of images shot on an eighteen megapixel camera, each measuring 5184 x 3456 pixels, which you wish to print as a contact sheet of images each measuring six x 4cm.

At 300dpi, the original images would impress at approximately 44 x 29cm – around A3 size. For the images to print at 6 x 4cm at 300dpi, they can exist resized to only 709 x 472px, making the files significantly smaller without a loss of impress quality.

Yous can use Photoshop'due south Paradigm Size function equally a tool to help yous with calculating such a resize. Open up an image, then select Prototype > Image Size .

STEP 5

One time y'all have input your settings, click Run . All of the images in your original folder volition be candy, and saved to the destination binder that you specified.

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