Convert JBG to PGM
Convert JBG images to PGM format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The JBG file extension stands for Joint Bi-level Image Group, a format developed for efficient lossless compression of binary images, primarily used in fax transmissions. Introduced by the Joint Bi-level Image Experts Group, JBG files store 1-bit raster images and offer superior compression compared to older standards like CCITT Group 3 and 4. Although initially popular for fax machines, the format has largely been superseded by JBIG2, which provides even better compression.
The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.
Select any JBG file from your device to start uploading it.
For an advanced conversion, use the JBG to PGM optional tools available on the preview page and click the Convert button.
You will be redirected to the download page to see the conversion status and download your PGM file.
To change JBG format to PGM, upload your JBG file to proceed to the preview page. Use any available tools if you want to edit and manipulate your JBG file. Click on the convert button and wait for the convert to complete. Download the converted PGM file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to JBG file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to JBG file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to JBG file location or include path to your input file.