PGM to PICON Converter

Switch from PGM to PICON format — online and effortless

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Quality Preserved

Your original PGM content is preserved in the PICON result. The conversion process does not introduce unwanted artifacts.

Server-Side Conversion

PGM to PICON conversion happens in the cloud. Your computer or phone is not burdened by any processing work whatsoever.

Cross-Platform Support

Works on Windows, macOS, Linux, iOS, and Android — any device with a browser can convert PGM to PICON.

How to convert PGM to PICON

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose picon or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your picon file right afterwards

About formats

PGM (Portable Graymap) is the grayscale member of the Netpbm image format family, created by Jef Poskanzer in 1988 as part of the Pbmplus toolkit for Unix systems. PGM stores single-channel intensity images where each pixel holds a gray value from 0 (black) to a user-specified maximum (typically 255 for 8-bit or 65535 for 16-bit). The format exists in ASCII (magic number P2), where pixel values are written as decimal text numbers separated by whitespace, and binary (magic number P5), where values are stored as raw bytes. Both variants begin with a header specifying the magic number, width, height, and maximum gray value. PGM was designed as the grayscale intermediate in Netpbm's convert-process-convert pipeline philosophy: source images from any format are converted to PGM, processed using Netpbm's extensive command-line tool library, then converted to the target format. One advantage is format transparency — the ASCII variant makes image data directly readable by humans and trivially processable by text tools like awk and grep, invaluable for debugging and education. The scientific and computer vision community's adoption is another strength: PGM's straightforward single-channel representation makes it a natural format for image analysis algorithms, and many academic papers and course materials use PGM examples. The format is supported by ImageMagick, GIMP, and countless image processing libraries, and remains standard input for many research tools and benchmarks.
Developer: Jef Poskanzer
Initial release: 1988
PICON (Personal Icon) is a small-format image type used in the X Window System ecosystem, developed by Steve Kinzler at Indiana University around 1990 as part of the picons (personal icons) database project. Picons are small, typically 48x48 pixel, color images used as visual identifiers for people, organizations, domains, and Usenet newsgroups in Unix mail readers, news readers, and other communication tools. The picon format is essentially an XPM (X PixMap) image stored with specific naming conventions and directory structures that allow software to look up the appropriate icon based on email address, domain name, or newsgroup name. The picons database organized thousands of these small images in a hierarchical directory structure keyed by domain name components (e.g., faces/com/example/user.xpm), enabling mail clients like exmstrstrstr and faces to automatically display a sender's photo or organizational logo alongside their messages. The system predated the modern concept of contact photos and avatars by more than a decade. One advantage is the system's pioneering role in visual identity for electronic communication: picons introduced the idea that email and Usenet messages should display a visual representation of the sender — a concept that eventually became standard in every modern email client, messaging app, and social media platform. The XPM-based format ensures that picons are displayable on any system with X Window libraries. Picon images are supported by ImageMagick, GIMP, and X Window display utilities, and the historical picons database remains archived online at Indiana University.
Developer: Steve Kinzler
Initial release: 1990

Frequently Asked Questions

Why convert PGM to PICON?

Moving to PICON enables small pixmap icon — better suited for web publishing, printing, or sharing across platforms.

What programs open PICON files?

Use ImageMagick, Unix desktop environments to view PICON files. The format is well-supported across desktop and mobile platforms.

Does the converter work on mobile devices?

It works on any device with a web browser — smartphones, tablets, laptops, and desktops all handle the conversion.

Will image dimensions change during conversion?

No — the converter keeps the same image size. Dimensions only change if you explicitly set resize options.

Is the conversion process secure?

Security is built in — source PGM files and converted PICON outputs are automatically removed from servers after processing.

What if my PGM file is corrupted?

Corrupted files are detected during upload. If your PGM file has structural issues, the converter will alert you immediately.