Troubleshooting TTF2PT1: Common Issues and Fixes

Troubleshooting TTF2PT1: Common Issues and Fixes

1. Installation fails or command not found

• Cause: Binary not in PATH or build dependencies missing.
• Fix: Ensure the install directory is in your PATH (e.g., export PATH=“$PATH:/usr/local/bin”). If building from source, install build tools (make, gcc) and font libraries (freetype-dev or equivalent) then re-run build.

2. Permission denied when running

• Cause: Executable lacks execute permission or running from protected directory.
• Fix: Run chmod +x ttf2pt1 and execute from a user-writable path or use sudo if appropriate.

3. Input TTF file rejected or parsed incorrectly

• Cause: Corrupt or nonstandard TTF file, or tool expects specific table formats.
• Fix: Validate the font with fonttools/ttx (ttx -l font.ttf) or use fontforge to open and re-export the TTF; then retry conversion.

4. Output PL or PFB malformed / missing glyphs

• Cause: Unsupported glyph features (complex OpenType tables) or encoding mismatch.
• Fix: Subset the font to basic glyphs before conversion (fonttools subset or FontForge); disable advanced OpenType features. Verify encoding options in ttf2pt1 and try different flags (e.g., specify ASCII vs binary output).

5. Wrong character mapping / encoding in resulting Type1

• Cause: Unicode-to-PostScript name mapping issues.
• Fix: Provide or edit an encoding file (.enc) mapping required code points; use a standard encoding (WinAnsi or MacRoman) if that fits your use case.

6. Crashes or segmentation faults

• Cause: Bug in the tool or corrupted input.
• Fix: Test with multiple input fonts to isolate; update to latest ttf2pt1 version or use alternative converters (FontForge, ttx + t1asm). Run under a debugger (gdb) only if comfortable; otherwise file a bug report with a minimal repro sample.

7. Large file size or inefficient output

• Cause: Embedded unnecessary tables or unoptimized outlines.
• Fix: Subset and simplify outlines (remove unused glyphs, simplify cubic/quadratic curves in FontForge), and choose binary vs ASCII Type1 appropriately.

8. Licensing or embedding restrictions in output font

• Cause: Source TTF has embedding/usage restrictions.
• Fix: Check the TTF’s OS/2 fsType and licensing metadata; use a permissive source font or obtain appropriate license; do not attempt to bypass DRM.

Quick diagnostic checklist

1. Confirm ttf2pt1 version and PATH.
2. Validate TTF with fonttools/fontforge.
3. Try converting a known-good TTF to rule out tool issues.
4. Subset/simplify problematic fonts.
5. Test alternatives (FontForge, fonttools ttx pipeline).
6. If bug persists, collect input font + command + tool version and report it to the project’s issue tracker.

If you want, tell me your OS, ttf2pt1 command used, and an example font filename and I’ll suggest the exact command and flags.