CFF to AFM conversion is the process of transforming font or font-metrics data stored in Compact Font Format (CFF) into Adobe Font Metrics (AFM) files, enabling metric-focused workflows, legacy application compatibility, or downstream typesetting and print processes. This conversion extracts glyph metrics, kerning and encoding information from a CFF-flavored font and writes them in the plain-text AFM specification so tools that require AFM can read and apply accurate font metrics.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
Drag your .CFF file from your computer or use the browse function.
Confirm .afm as the selected destination format.
Click "Convert" and download your converted .AFM file once ready.
CFF files typically use the application/octet-stream MIME type and contain glyph outline data encoded with Type 2 CharStrings. AFM files are plain text files with MIME type text/plain, defining font metrics such as character widths and kerning. CFF is often embedded within font containers like OpenType, while AFM is used alongside Type 1 fonts for layout accuracy.
The AFM (.AFM) format is commonly used for other. Understanding its characteristics can be helpful when converting to or from other formats like CFF.
While specific technical details aren't available here, AFM files generally serve the purpose of storing other effectively within their domain.
Our online CFF to AFM converter allows you to transform your CFF files into AFM format quickly and effortlessly. Designed for professionals and hobbyists alike, this tool ensures accurate conversion without compromising file integrity. No installation or technical expertise is needed—just upload your CFF file and get the AFM version instantly.
CFF (Compact Font Format) files are primarily used for storing font outlines and are efficient for embedding in PDFs. AFM (Adobe Font Metrics) files focus on providing detailed font metric data like character widths and kerning pairs. While CFF files are optimized for compact storage and rendering, AFM files are essential for precise typographic adjustments and layout design.
Keep source CFF file sizes under 50–200MB for faster processing; very large font collections can slow conversion and consume memory.
To preserve metric accuracy, export AFM with full-precision widths and all kerning pairs rather than using rounded values; avoid lossy rounding if precise typesetting is required.
For batch conversion, group fonts with similar encodings and run conversions on a machine with ample RAM (4GB+ recommended) or use a server-based tool to avoid timeouts.
Note format-specific limitations: CFF2 support can be limited—some converters only read legacy CFF; hinting and CFF-specific private dictionary info do not translate into AFM, which only stores metrics.
Love this tool! It made converting my CFF files to AFM effortless and fast.
Sarah T.
Designer
The online converter saved me a lot of time—no software installs needed and results were perfect.
Mark D.
Developer
Accurate font metrics are crucial, and this converter delivers exactly that with great ease.
Emily R.
Publisher
Start your free CFF to AFM conversion now.
Drag your file here to to upload.
Up to 250MB
If you need compressed delivery, request a zipped AFM bundle; AFM itself is plain text and does not support embedded compression or binary tables.