Phatch – photo batch processor and Exif renamer

Last Updated on July 12, 2023

PHoto bATCH Processor (Phatch) is a simple to use open source GUI Photo Batch Processor which handles all popular image formats and can duplicate (sub)folder hierarchies.

Phatch can batch resize, rotate, apply perspective, shadows, rounded corners, … and more. Phatch allows you to use EXIF and IPTC tags for renaming and data stamping. Phatch also supports a console version to batch photos on webservers.

Phatch is a cross-platform tool, running on Linux, Windows and Mac operating systems.

Features include:

  • Actions:
    • Auto Contrast – maximise image contrast.
    • Background – put colour under transparent image.
    • Blender – 3D objects.
    • Border – draw border inside or outside.
    • Brightness – adjust brightness from black to white.
    • Canvas – crop or expand the canvas without scaling.
    • Color to Alpha – make selected color transparent.
    • Colourise – colourise greyscale images.
    • Common – copies the most common pixel value.
    • Contour – draw a contour around image edges.
    • Contrast – adjust from grey to black & white.
    • Convert Mode – convert the colour mode of an image.
    • Copy – copy the original image.
    • Crop – crop the image.
    • Delete Tags – delete Exif or Lptc tags.
    • Desaturate – fade all colours to grey.
    • Effect – blur, contour, detail, edge enhance, edge enhance more, emboss, find edges, smooth, smooth more, and sharpen.
    • Equalise – equalise the image histogram.
    • Fit – downsize and crop image with fixed ratio.
    • Geek – execute external command.
    • Geotag – add GPS data.
    • Grid – make n x m matrix of image.
    • Highlight – apply a transparency highlight.
    • Imagemagick – 3D edge, blur, bullet, charcoal, motion blur, paint, pencil sketch, polaroid, shadow, sharpen, sigmoidal contrast, unsharp, and wave.
    • Invert – invert the colours of an image.
    • Lossless JPEG – rotate, flip, greyscale, and crop.
    • Mask – apply a transparency mask.
    • Maximum – copies the maximum pixel value.
    • Median – copies the median pixel value.
    • Minimum – copies the minimum pixel value.
    • Mirror – symmetrical tile texture.
    • Offset – offset by distance and wrap around.
    • Perspective – shear 2D or 3D.
    • Posterise – reduce the number of bits of colour channel.
    • Rank – copies the rank’th pixel value.
    • Reflection – drops a reflection.
    • Rename – rename the original image.
    • Rename Tag – rename a tag.
    • Rotate – rotate with random angle.
    • Round – rounded or crossed corners.
    • Saturation – adjust saturation from greyscale to high.
    • Save – save and convert to other types.
    • Save Tags – save only metadata (lossless).
    • Scale – make the image smaller or larger.
    • Shadow – drops a blurred shadow under a photo.
    • Sketch – transform to a greyscale pencil drawing.
    • Solarise – invert all pixel values above threshold.
    • Tamogen – tone alerting mosaic generator.
    • Text – write text at a given position.
    • Time Shift – shift time values of tags.
    • Transpose – flip or rotate 90 degrees.
    • Warm Up – colorize midtones of an image.
    • Watermark – apply with tiling, scaling and opacity.
    • Write Tag – write new value to a tag.
  • Enable & disable actions.
  • Copy folder hierarchies.
  • Python shell.
  • Error logging.
  • File history.
  • Console (can run on servers without gui).
  • Desktop droplets.
  • Image Inspector (exif & iptc).
  • DPI change.
  • Drag & Drop droplet.
  • Cross-platform (Linux, Windows & Mac).
  • python-api.
  • Formats supported:
    • Read & Write: BMP, DIB, GIF, JPE, JPEG, JPG, IM, MSP, PCX, PNG, PBM, PGM, PPM, TIF, TIFF, and XBM.
    • Write only: EPS, PS, PDF.
  • Color support:
    • Monochrome (1-bit pixels, black and white).
    • Grayscale (8-bit pixels, black and white).
    • RGB (3×8-bit pixels, true colour).
    • RGBA (4×8-bit pixels, RGB with transparency mask).
    • CMYK (4×8-bit pixels, colour separation).
    • P (8-bit pixels, mapped using a colour palette).
    • YCbCr (3×8-bit pixels, colour video format).
    • I (32-bit integer pixels).
    • F (32-bit floating point pixels).

Developer: Stani, Nadia Alramli
License: GNU General Public License v3.0


Phatch is written in Python. Learn Python with our recommended free books and free tutorials.

Return to Photo Metadata Editors | Return to Small Image Tools | Return to Batch Image Processors

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