CGM to PICT Converter

Convert CGM metafiles to Apple PICT format online

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Classic Mac Format

CGM to PICT brings ISO technical graphics into the Apple PICT ecosystem. Useful for legacy Mac workflows and archival compatibility.

No Downloads

Everything runs in your web browser. No software, no plugins — just open the converter, upload, and get your PICT result.

Server Processing

Conversion happens on remote servers. Your local machine stays free while the PICT file is generated from your CGM source.

How to convert CGM 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

CGM (Computer Graphics Metafile) is a vector graphics standard defined by ISO 8632, first published in 1987 and developed through the ISO/IEC JTC 1/SC 24 committee. The standard defines a device-independent format for storing and transferring two-dimensional vector graphics, raster images, and text. CGM supports three encoding methods: character encoding (compact text representation), binary encoding (efficient machine-readable form), and clear-text encoding (human-readable for debugging). The format describes graphical primitives including polylines, polygons, ellipses, circular arcs, splines, and text with associated attributes for color, line style, fill patterns, and clipping boundaries. CGM found its strongest adoption in technical documentation, particularly in aerospace, defense, and industrial sectors where long-term archival and precise technical illustration are critical. One advantage is formal standardization — as an ISO standard, CGM provides vendor-neutral, specification-driven interoperability guaranteed across compliant implementations. The format's adoption in specialized industries is another practical strength: WebCGM, a W3C profile of CGM, became the mandated illustration format for interactive electronic technical manuals in the aerospace industry (ATA iSpec 2200), ensuring CGM's continued relevance in aviation maintenance documentation. While general-purpose vector work has moved to SVG and PDF, CGM persists in regulated industries where certified, standards-based graphics interchange is mandatory.
Initial release: 1987
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 CGM to PICT?

PICT is the classic Mac OS graphics format. CGM to PICT is relevant when you need compatibility with legacy Apple software and document workflows.

What opens PICT files?

Adobe Illustrator, GIMP, IrfanView, and older macOS Preview versions support the PICT format for viewing and basic editing.

Can I convert multiple CGM files to PICT at once?

Batch conversion is supported. Upload several CGM files simultaneously and each one converts to PICT independently in a single session.

Is this tool free?

Standard CGM to PICT is free. Premium plans provide more capacity for professional or high-volume use.

Can I use this on a Chromebook?

Yes — Convertio works in Chrome and any other modern browser. Chromebooks, tablets, and phones all work perfectly.