PDF problem
PDF shows boxes instead of letters
SymptomSome characters appear as empty rectangles or disappear, often after an edit.
Why it happens
- •An editor wrote characters the embedded font subset doesn't contain.
- •The font isn't embedded and the reader lacks it.
How to fix it
Redo the edit in a font aware editor
MythosPDF checks every glyph before writing and refuses to produce boxes, telling you which character is missing.
Reword
Using letters the document already contains avoids the problem in subset fonts.
Free, in your browser, no sign up and no watermark.
Open PDF editorQuestions people ask
+Why are they called tofu?
The empty boxes resemble blocks of tofu.
+Is the text still there?
The character codes are there; the font just can't draw them.
Related