Converting images with searchable text
Arnis Gubins
arnis at geofx.on.ca
Sun Jun 23 12:28:58 PDT 2013
> The text within the original pdf images is searchable. But once
> the entire book is converted to pdf, the text in the images is no longer
> searchable.
Tim,
The problem is due to FM's internal conversion to EPS and then the
subsequent output as postscript. In this process, the fonts used in the
PDF imported graphics are converted to CID Identity-H encoding on
output, so that the characters that you see, do not correspond to their
actual encoding within the font [the output font is subset and
re-encoded for the subset].
Consequently, when you search for the word "string" in the PDF, it may
be represented internally as " ¢£@ƣ", so no way can you find it,
even though you can "see" it. The problem arose after FM8 and affects
Type 1 and OTF fonts. In later version of FM, all fonts are affected.
This is a known bug. It also clobbers text in SVG imports.
Arnis Gubins
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