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Top Forums UNIX for Beginners Questions & Answers Limitations of 'pdftotext' in Linux... Post 303041371 by Neo on Thursday 21st of November 2019 11:52:07 PM
Old 11-22-2019
Well, as you know, sometimes people find fancy fonts they like, and then they want to use them.

One approach is to extract / list the fonts in the PDF files and log them.

Then over time you can see what are the offending fonts (assume that is the case).

Then, you can find a way to preprocess the PDF to strip / change / remove the pdftotext offending fonts.

Or, you can get the source code for pdftotext and try to recompile to support these new font families.

Naturally, the first step toward solving any problem is knowing what the problem is and it sound like you may have isolated it to non-supported pdftotext fonts.
 

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pdffonts(1)						      General Commands Manual						       pdffonts(1)

NAME
pdffonts - Portable Document Format (PDF) font analyzer (version 3.00) SYNOPSIS
pdffonts [options] [PDF-file] DESCRIPTION
Pdffonts lists the fonts used in a Portable Document Format (PDF) file along with various information for each font. The following information is listed for each font: name the font name, exactly as given in the PDF file (potentially including a subset prefix) type the font type -- see below for details emb "yes" if the font is embedded in the PDF file sub "yes" if the font is a subset uni "yes" if there is an explicit "ToUnicode" map in the PDF file (the absence of a ToUnicode map doesn't necessarily mean that the text can't be converted to Unicode) object ID the font dictionary object ID (number and generation) PDF files can contain the following types of fonts: Type 1 Type 1C -- aka Compact Font Format (CFF) Type 3 TrueType CID Type 0 -- 16-bit font with no specified type CID Type 0C -- 16-bit PostScript CFF font CID TrueType -- 16-bit TrueType font OPTIONS
-f number Specifies the first page to analyze. -l number Specifies the last page to analyze. -opw password Specify the owner password for the PDF file. Providing this will bypass all security restrictions. -upw password Specify the user password for the PDF file. -v Print copyright and version information. -h Print usage information. (-help and --help are equivalent.) EXIT CODES
The Xpdf tools use the following exit codes: 0 No error. 1 Error opening a PDF file. 2 Error opening an output file. 3 Error related to PDF permissions. 99 Other error. AUTHOR
The pdffonts software and documentation are copyright 1996-2004 Glyph & Cog, LLC. SEE ALSO
pdfimages(1), pdfinfo(1), pdftocairo(1), pdftohtml(1), pdftoppm(1), pdftops(1), pdftotext(1) 22 January 2004 pdffonts(1)
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