[FOP-3042] [PATCH] SVG text containing certain glyphs isn't rendered

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3, 2.4, 2.6
• Fix Version/s: 2.9
• Component/s: foreign/svg
• Assignee: Simon Steiner
• Reporter: Per Cederberg
• Created: 20/Dec/21 14:15
• Updated: 11/Jul/23 12:02
• Resolved: 11/Jul/23 12:02

Description

When rendering an XSL-FO containing an inline SVG with a custom font (Century Gothic), text is only displayed if it doesn't contain the "o" character inside a word. 

The provided "test.xml" file includes a minimal SVG image that shows this behavior. Everything works correctly from FOP 1.x - 2.2. But starting with FOP 2.3, some text lines might be omitted from the output. Typically lines containing an "o" glyph inside a word. Might also be triggered by other glyphs, as I haven't tested exhaustively with whole alphabet.

The attached "output-fop2.2.pdf" shows a correct rendering, whereas the "output-fop2.3.pdf" shows rendering in 2.3, 2.4 and 2.6.

Disclaimer: This may actually be a bug in Apache Batik (1.10 and up), but I'm currently unable to reproduce it using their command-line rasterizer tool.

Issue Links

• relates to: FOP-3013 SVG text not generated for certain fonts when using subset embedding