How to use svg fonts in pdf generation pipelines
- Step 1Identify the PDF library's requirements — PrinceXML: TTF, OTF, WOFF, WOFF2 native. WeasyPrint: TTF, OTF (no WOFF2 in some versions). wkhtmltopdf: TTF or OTF. Older PDF kit pipelines: SVG Font sometimes preferred.
- Step 2Generate the right format — JAD's Font-to-SVG-Font tool produces a deprecated-but-still-supported SVG Font. For modern PDF pipelines, prefer WOFF2 → TTF using JAD's WOFF2-to-TTF tool — most modern PDF libs accept TTF directly.
- Step 3Validate end-to-end — Generate a test PDF using a representative subset of glyphs (numbers, accented letters, special characters). Open in Adobe Acrobat to confirm the font is properly embedded — some pipelines silently drop unrecognised formats.
Frequently asked questions
Why would I use SVG Font when TTF works?+
Some embedded PDF generation pipelines pre-date 2010 and never added TTF embedding logic — they rely on SVG Font for vector typography. Modern alternatives (Prince, WeasyPrint) accept TTF natively, so SVG Font is mostly a fallback for legacy systems you can't upgrade.
Does SVG Font compress well in PDF?+
PDF compresses XML-bodied content with FlateDecode (zlib). The compressed SVG Font ends up roughly the size of the original TTF — no win there. The bandwidth saving applies before PDF generation, not inside the final PDF.
Do PDF readers render SVG Font correctly?+
If the PDF library properly converts SVG Font glyphs into PDF Type 3 fonts during generation, readers see no difference. If the library passes SVG Font through unchanged, only specialty viewers render correctly. Test with the actual PDF library.
Privacy first
Every JAD Font tool runs entirely in your browser using opentype.js and the wawoff2 WASM Brotli encoder. Your fonts never leave your device — verified by zero outbound network requests during processing.