Convert PGM to HRZ
Convert PGM images to HRZ format, edit and optimize images online and free.
Drop Files Anywhere to Upload
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.
The HRZ file extension is associated with Slow Scan Television (SSTV), a method used by amateur radio operators to transmit still images via radio waves. HRZ files store images rendered from SSTV audio signals, typically as 256x240 pixel RGB bitmaps. These files can be viewed using software like XnViewMP or Logipole Konverter. SSTV allows for the transmission of images over high-frequency bands using single-sideband modulation (SSB). The HRZ format is not widely produced by specific programs, but several image viewers support it.
Drag & drop any PGM file from your device or click the Choose File button to proceed.
Check the file preview quickly and use PGM to HRZ tools if you need to change the conversion settings.
Wait a couple of seconds for the converter to do the hard job, then download your HRZ file.
To change PGM format to HRZ, upload your PGM file to proceed to the preview page. Use any available tools if you want to edit and manipulate your PGM file. Click on the convert button and wait for the convert to complete. Download the converted HRZ file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to PGM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to PGM file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to PGM file location or include path to your input file.