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Batch Resize Images

This tool allows you to resize all images in the selected directory using various operations and conditions.

  app_cover

📝 Usage

Select a directory containing images, adjust the settings and conditions as desired, and run the program by pressing Resize!.

Note

  • Supported input filetypes: JPG JPEG PNG WEBP BMP TIF TIFF
  • Supported output filetypes: AUTO JPG PNG WEBP

💡 Settings Explained

  • Resize to:

    • Resolution: Resize to a specific width and height, ignoring aspect ratio.
    • Percentage: Resize the image on a percent scale.
    • Width: Target the image width and resize it.
    • Height: Target the image height and resize it.
    • Shorter side: Target the shorter side of the image and resize it.
    • Longer side: Target the longer side of the image and resize it.

  • Condition:

    • Upscale and Downscale: Resize the image to the new dimensions, regardless of whether they're larger or smaller than the original dimensions.
    • Upscale Only: Resize the image if the new dimensions are larger than the original dimensions.
    • Downscale Only: Resize the image if the new dimensions are smaller than the original dimensions.

  • Checkbuttons:

    • Use Output Folder: When enabled, a new folder will be created in the image directory called 'Resize Output' where images will be saved.
    • Overwrite Files: When disabled, conflicting files will have a _# appended to the filename. If enabled, files with the same basename will be overwritten.
    • Save PNG Info: When enabled, this option will automatically save any PNG/WEBP chunk info to the resized output if saving as PNG or WEBP. If converting from PNG/WEBP to another type, then a text file will be created containing the metadata.
      • Handling WEBP metadata requires ExifTool.exe to be in the same folder as this application.
      • ExifTool (2003-2024) was created by Phil Harvey and can be downloaded from https://exiftool.org/

  • Filetype:

    • Select 'AUTO' to output with the same filetype as the input image. Alternatively, choose a specific filetype to force all images to be saved with the chosen type.

  • Quality:

    • Used to control the output quality of JPG and WEBP images. A higher value results in a higher quality output. (Ignored for PNG)

🚩 Requirements

Tip

You don't need to worry about anything if you're using the portable/executable version.

Python 3.10+

You will need Pillow

  • To install Pillow: pip install pillow

📜 Version History

v1.06 changes:

  • New:
    • Metadata can now be copied between PNG and WEBP images.
      • Copying metadata from PNG-to-WEBP and WEBP-to-PNG requires ExifTool.exe to be in the same folder as batch_resize_images.exe.
      • ExifTool (2003-2024) is created by Phil Harvey and can be downloaded from https://exiftool.org/

  • Other changes:
    • Clicking on the directory entry when it's displaying the default ... will now clear the entry.
    • Minor UI tweaks.