HRZ to PICT Converter

Online HRZ to PICT conversion — fast results

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Any Device Works

Run the HRZ to PICT converter from any device — desktop, laptop, tablet, or phone. All you need is a web browser to get started.

Format Bridge

Go from specialized HRZ (amateur radio slow-scan television) to universally supported PICT — making your data accessible to anyone without niche software.

Intuitive Process

No learning curve needed. The HRZ to PICT converter walks you through every step with a clean, self-explanatory interface.

How to convert HRZ to PICT

1

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

2

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

3

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

About formats

HRZ is a simple raster image format associated with slow-scan television (SSTV), a method of transmitting still images over radio frequencies used by amateur radio operators since the late 1950s when Copthorne Macdonald pioneered the technology. HRZ files store images at a fixed resolution of 256x240 pixels in raw RGB format, with each pixel represented as three bytes (red, green, blue) at 8 bits per channel, producing uncompressed files of exactly 184,320 bytes. The format has no header, no metadata, and no compression — the file is simply a sequential dump of raw pixel data in row-major order. This extreme simplicity reflects the format's origins in the amateur radio community, where SSTV images are transmitted as audio tones encoding luminance and chrominance values over narrow-bandwidth HF (shortwave) radio channels. The fixed 256x240 resolution corresponds to common SSTV transmission modes, and HRZ files serve as the digital capture or storage medium for received SSTV transmissions. One advantage is the format's zero-overhead structure: with no parsing, decompression, or metadata processing required, HRZ files can be read by any program capable of reading raw pixel data with known dimensions — a single function call in virtually any programming language. The format's connection to amateur radio SSTV culture is another notable aspect: HRZ files document a unique form of image communication where operators transmit photographs over thousands of miles using nothing but radio waves and audio encoding, a practice that continues today alongside digital modes. HRZ files can be opened by ImageMagick, GIMP, and specialized SSTV software.
Developer: SSTV Community
Initial release: 1985
PICT is a metafile graphics format created by Apple Computer as the native graphics format for the Macintosh, debuting alongside the original Mac in January 1984 and remaining central to Mac OS graphics until the transition to Mac OS X. PICT files record a series of QuickDraw operation codes (opcodes) that reproduce the image when replayed through the QuickDraw graphics engine: operations for drawing lines, arcs, rectangles, rounded rectangles, ovals, polygons, regions, text strings, and pixel maps (bitmaps). This opcode-based approach means PICT files are not simply pixel grids but rather programmatic descriptions of how to draw the image, combining resolution-independent vector elements with pixel data in a unified stream. The PICT 2 revision, introduced with the Macintosh II and Color QuickDraw in 1987, extended the format to handle 24-bit color, multiple pixel depths, extended color spaces, and embedded JPEG and PackBits compressed data. PICT was integral to the Macintosh user experience: system clipboard operations (Copy/Paste), screen capture, printing, and inter-application data exchange all used PICT as the common visual representation. One advantage is historical comprehensiveness: PICT files from the classic Mac era capture both the visual output and the drawing methodology of Mac applications, preserving not just the image but the QuickDraw operations that produced it — valuable for understanding the visual computing paradigm of early Macintosh software. The format's extensive use in desktop publishing during the DTP revolution of the late 1980s provides another dimension of historical importance. PICT files are readable by macOS Preview, ImageMagick, XnView, LibreOffice, and GraphicConverter.
Developer: Apple Computer
Initial release: 1984

Frequently Asked Questions

Why convert HRZ to PICT?

Legacy Apple graphics format for classic mac os — converting HRZ to PICT gives your SSTV images broader reach and easier sharing across standard platforms.

What programs open PICT?

Open PICT with standard tools like Windows Photos, Preview on macOS, GIMP, Photoshop, or any web browser — no special software needed.

Does the conversion preserve quality?

The converter retains maximum fidelity during the HRZ to PICT transformation. Any differences stem from the output format's own characteristics.

What is the HRZ format?

HRZ is used in amateur radio slow-scan television. It stores radio-transmitted images and ham radio communication — converting to PICT makes this data universally accessible.

What platforms are supported?

The converter works on any device with a browser — Windows, macOS, Linux, iOS, Android. No platform-specific software needed.

Is batch HRZ to PICT conversion supported?

Absolutely — queue multiple HRZ images and convert them all to PICT in a single session. No need to process one at a time.