Cid Font F1 F2 F3 F4 Repack Best -

| Tool | Platform | Key feature | |------|----------|--------------| | | Win/Mac | Advanced CID repacking, PDF/A repair | | PDFlib | Cross-platform | Programmatic font substitution | | PDFescape (Premium) | Web | Online repack (limited to 10MB) | | Sejda | Web/Desktop | "Fix font errors" option |

| Issue | Symptom | |-------|---------| | | Text appears as dots, boxes, or random characters | | Editing in Illustrator/Inkscape | "Font F1 not available" error | | Text extraction | Copy-paste yields scrambled output | | Print RIP failure | PS error: "Undefined font" | | PDF/A compliance | Validation fails due to incomplete font embedding | cid font f1 f2 f3 f4 repack

name type encoding emb sub uni object ID ----------------- ------------ ---------- --- --- --- --------- F1 CID Type0C Identity-H yes yes yes 4 0 F2 CID Type0C Identity-H yes yes yes 5 0 F3 CID TrueType Identity-H yes yes yes 6 0 F4 CID Type0C Identity-H yes yes yes 7 0 All fonts are embedded subsets but anonymized as F1–F4. gs -dSAFER -dNOPAUSE -dBATCH -sDEVICE=pdfwrite \ -dCompatibilityLevel=1.7 \ -dPDFSETTINGS=/prepress \ -dSubsetFonts=false \ -dEmbedAllFonts=true \ -sOutputFile=repaired_catalog.pdf \ broken_catalog.pdf Step 3: Verify the Result Run pdffonts repaired_catalog.pdf again: | Tool | Platform | Key feature |

// iText 7 example - Force full CID embedding PdfFontFactory.FontEncodeing = PdfEncodings.IDENTITY_H font.setSubset(false); Doing so ensures your PDF will never need a repack in the future. Q: Is repacking the same as flattening? A: No. Flattening merges transparent objects; repacking fixes font structures. They are complementary. A: The naming extends as needed

A: The naming extends as needed. F1 to F4 is common, but any digit is possible.