CharacterFontSize property

Indexed read-only access to the effective font size used to render the character (in PDF points, after CTM scaling). The valid range is 0 .. CharacterCount - 1 for the current page; passing an out-of-range index raises EPdfError.

Characters are returned in their logical reading order — the order in which PDFium parsed the content stream — not necessarily in visual order (right-to-left scripts may appear reversed).

All coordinates are in PDF user-space points with the origin at the bottom-left. Use PdfView1.PointsToScreen or your own coordinate transform when overlaying on a VCL canvas.

• CharacterCount resets to 0 when Active is False or no page is open.
• Whitespace and control characters are included in the count; filter them in your loop if needed.
• PDFium synthesises space characters where the content stream uses positioning rather than explicit whitespace (see CharacterGenerated).