Software:gThumb

Short description: Image viewer and browser utility for the GNOME environment

GThumb

gThumb v3.8.0 in EDIT mode
Original author(s)	Paolo Bacchilega
Developer(s)	The GNOME Project
Initial release	2001 (2001)
Written in	C (GTK)
Operating system	Unix-like
Type	Image viewer Image organizer Post-production tool
License	GPL-2.0-or-later
Website	wiki.gnome.org/Apps/Gthumb

gThumb is a free and open-source image viewer and image organizer with options to edit images. It is designed to have a clean and simple user interface and follows GNOME HIG, it integrates well with the GNOME desktop environment.

Features

gThumb allows the filesystem to be browsed for images. They can be organized into catalogs, or viewed as a slideshow. Folders and catalogs can be bookmarked, and comments can be added to images.

Via gPhoto it can also acquire data directly from digital cameras.

gThumb offers a certain range of image editing operations suited for digital photography, such as the change of image hue, saturation, lightness, contrast or the adjustment of colors and sharpness. It can also crop, scale and rotate images by 90° or custom angles, and it features a red-eye effect removal function. Manipulated images can be saved in the formats JPEG, PNG, TIFF, .tga, avif, heif and WebP.

gThumb can export web-based photograph albums with various theme templates. These albums can be uploaded to a website, providing a very simple mechanism for publishing collections of photos on the web.

gThumb also includes many basic features such as copying, moving, deleting or duplicating images, printing, zooming, format transcoding, and batch renaming.

Dependencies

gThumb only requires glib (>= 2.36.0), gtk (>= 3.16), gthread, gmodule and gio-unix. Libraries that are not mandatory but possible include exiv2, libjpeg, LibTIFF, LibRaw, and JPEG XL's libjxl.

History

The first public version was 0.2 in 2001.

It was originally based on GQView. Starting from version 2.12.0 gThumb allows users to export images to various websites. Version 3.0.0 is based on GTK version 3, and supports high quality SVG zoom.

Gallery

• 

  gThumb v3.4.0

• 

  gThumb v3.4--Special effects

• 

  gThumb v3.4--Adjust Colors

• 

  gThumb v3.4--Adjust sharpness

See also

• Comparison of image viewers
• Eye of GNOME
• Darktable
• digiKam

Further reading

• Bärwaldt, Erik (2015). "Jack of all trades: using gThumb to view, process, and present images". Ubuntu User (Linux New Media USA) (27/2015). https://www.ubuntu-user.com/Magazine/Archive/2015/27/Using-gThumb-to-view-process-and-present-images. Retrieved 2023-06-27.