Cid Font F1 F2 F3 F4 Repack Jun 2026

| Problem | Likely Cause | Solution | |---------|--------------|----------| | After repack, text spacing is wrong | Lost width information in original subset | Use -dPreserveFontCharSet=true in Ghostscript | | Repack makes file size huge | Subset disabled, full fonts embedded | Re-enable subsetting but keep original names: -dSubsetFonts=true | | Repack fails with "/undefined in .putdeviceprops" | Corrupt PDF structure | Preprocess with mutool clean (MuPDF tool) | | F1 becomes "Dingbats" or Symbol | CMap mapping broken | Extract text as outlines instead |