ACFM Converter

Extract text from Adobe font metrics files (ACFM)


Drop or upload your .ACFM file
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How to extract text from your ACFM file

  1. Click the "Select File" button above, and choose your ACFM file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert ACFM to another file type

To convert ACFM font metrics to another format, you need Adobe Acrobat or other Font software.

Convert a file to ACFM

To convert other file formats to the "Font Metrics Reference File" file type, you need software like Adobe Acrobat or a similar tool.


About ACFM files

The .ACFM file stands for Adobe Composite Font Metrics. It is a specialized, plain-text format used to describe the structure and global spatial metrics (such as bounding boxes and kerning data) for Original Composite Font (OCF) programs. These are typically complex Asian-language fonts requiring thousands of characters. These files are utilized internally by legacy typesetting environments like Adobe Type Manager, Adobe Acrobat, and Adobe InDesign. Users often attempt to use .ACFM files as installable fonts, which immediately causes frustration. The critical disadvantage of this format is that it contains no actual graphical glyphs - only numerical spacing data. It is completely non-functional without its accompanying PFB (Printer Font Binary) and AFM files. Furthermore, this is a highly deprecated, proprietary Adobe architecture that has been largely replaced by modern OTF (OpenType) formats. Standard online converters fail when processing this format because they mistakenly treat it as a document or a standard font file, rather than a raw metrics reference. Since it is ASCII-encoded text, the best conversion targets are TXT, JSON, or XML to extract the data for parsing by developers or type designers. This file format is notoriously difficult to process because only specialized Adobe software or high-end typography tools know how to interpret the metrics.

Convert.Guru analyzes your ACFM file, detects the exact format, and lets you read the text inside.

Users also converted ACSM, PDF and CFM files.


FAQ

If you want to convert ACFM file to CFM, you can use Adobe Acrobat or similar software from the "Composite Font Metrics Data" category. In the File menu, look for Save As… or Export….

To convert files to ACFM, try Adobe Acrobat or another comparable tool in the "Composite Font Metrics Data" category.



The ACFM Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ACFM converter.