PS to PT3 Converter

PostScript to PT3 font format — free online tool

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Type 3 Output

Extract PostScript font definitions into PT3 format — supporting complex glyphs with gradients and bitmaps beyond Type 1 limits.

Browser-Based

Convert PS to PT3 without installing font tools. The converter runs entirely online through any modern web browser.

File Security

Your PostScript data is encrypted during transfer and deleted after conversion. PT3 outputs are removed within 24 hours.

How to convert PS to PT3

1

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

2

Choose pt3 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your pt3 file right afterwards

About formats

PS is the standard extension for files written in PostScript, the page description language created by Adobe Systems and first shipped in 1984 with the Apple LaserWriter. A PostScript file is a complete program that describes the precise appearance of a page — text, vector graphics, curves, fills, and even embedded raster images — using a stack-based interpreted language with full programming constructs. When sent to a PostScript-compatible printer or interpreter (such as Ghostscript), the program executes and produces rendered output. PostScript introduced cubic Bezier curves as the standard representation for smooth outlines, a mathematical model that became the foundation for virtually all subsequent vector graphics and font technology including PDF, SVG, and OpenType. The language also serves as a font format: Type 1 PostScript fonts encode glyph outlines as PostScript programs with hinting instructions for sharp rendering at low resolutions, while Type 3 fonts use the full language to define arbitrarily complex glyphs. One advantage is device independence — a PostScript file produces identical output whether rendered on a 300 dpi desktop printer, a high-resolution imagesetter, or a software rasterizer, because it describes shapes mathematically rather than as pixel grids. The human-readable text format provides another practical strength: PS files can be inspected, debugged, and modified with any text editor, and they can be generated programmatically by any software without requiring specialized libraries. PostScript files are widely handled by Ghostscript, Adobe Acrobat, preview applications, and numerous publishing and graphics tools.
Developer: Adobe Systems
Initial release: 1984
PT3 (PostScript Type 3) is a font format defined as part of the PostScript language specification, introduced by Adobe Systems in 1984. Unlike Type 1 fonts, which use a restricted subset of PostScript operators optimized for hinting and efficient rendering, Type 3 fonts allow the full PostScript language to describe each glyph. This means glyphs can incorporate graduated fills, grayscale shading, complex path operations, color, and even bitmap images — capabilities impossible within Type 1's constrained charstring interpreter. Adobe originally kept the Type 1 specification secret and proprietary, so third-party type foundries and developers who wanted to create PostScript-compatible fonts had to use the publicly documented Type 3 format during the late 1980s. A notable advantage is creative freedom: because any valid PostScript program can define a glyph, designers can produce decorative, illustrated, and textured letterforms that go far beyond simple outline fills. The format's openness was another practical strength in its era, enabling anyone to create PostScript fonts without licensing Adobe's proprietary hinting technology. However, Type 3 fonts lack the hinting mechanisms that make Type 1 text crisp at small sizes and low resolutions, which limited their use for body text. When Adobe published the Type 1 specification in March 1990, most foundries migrated to the hinted format. Type 3 fonts remain primarily of historical interest, encountered in archived PostScript documents and specialized applications where artistic glyph rendering outweighs the need for screen-optimized hinting.
Developer: Adobe Systems
Initial release: 1984

Frequently Asked Questions

Why convert PS to PT3?

PT3 is a PostScript Type 3 font format. Converting PS to PT3 extracts font definitions that support bitmap and custom glyph rendering.

What programs open PT3 files?

PT3 files work with FontForge, Ghostscript, and PostScript-compatible systems that support Type 3 font definitions.

How does PT3 differ from Type 1?

Type 3 fonts allow arbitrary PostScript operators in glyph definitions, supporting gradients and bitmaps that Type 1 cannot represent.

Is the converter free?

Convertio provides free PS to PT3 conversion for all users. Premium plans unlock expanded limits for professional workflows.

Are glyph definitions preserved?

PostScript glyph programs transfer into the PT3 format faithfully, preserving all drawing instructions and rendering behavior.