# troubleshooting
Posts tagged "troubleshooting"
gpdf team
Why does my PDF show tofu boxes for Japanese?
Empty rectangles instead of Japanese characters mean your PDF couldn't find glyphs for those codepoints. Here are the four causes and the fixes.
recipetroubleshootingcjk
gpdf team
Japanese PDFs in Go: the 2026 definitive guide
How to generate Japanese PDFs in Go in 2026 — fonts, TrueType subsets, mixed kanji/kana/ASCII, and why CGO and Chromium are unnecessary.
tutorialcjktroubleshooting