Personally, I think the problem lies somewhere else. The information is there but it might be a large project to write a parser yourself to figure out which encodings that are used. If it does not have embedded such a table, then bad luck! The following code page numbers are specific to Microsoft Windows.
Download to PDF with specific codepage
Would you like to answer one of these unanswered questions instead? However, it is now commonplace for operating system vendors to provide their own character encoding and rendering systems that run in a graphics mode and bypass this hardware limitation entirely. Thank you for your interest in this question. Character Sets - Overview. But if you just want the text and don't care about the internal encodings used I would suggest to let the library take care of conversions for you.
From Wikipedia, the free encyclopedia. This edition was published in after extensive rework of the withdrawn first edition by a different team of authors.
You completely ignore Composite Fonts which can have multi-byte encodings, even mixed ones, e. How can I get plain text from above string array?
The font encoding will determine which glyph shape should be drawn when a specific character code is seen in the text strings. Only then you'll be able to reverse-map the encoded characters to character names.
Moreover, there are three different ways to represent text strings. The majority of vendors identify their own character sets by a name.
Home Questions Tags Users Unanswered. June and the Tumbleweed badge. In some cases, unofficial code page numbers were invented e. Setup a private space for you and your coworkers to ask questions and share information.
Most of these code pages have the same number as Microsoft code pages, although they are not exactly identical. These code pages are used by Microsoft in its own Windows operating system. Many older character encodings unlike Unicode suffer from several problems.
How to change Font Encoding in PDF
And this by far is not the only misinformation in your answer. How are you extracting your text? And note that I mean characters, nothing to do with glyphs or fonts. Thank you very much in advance, the meaning of pdf Blz.
It seems like there are multiple hex encoded strings contained in this array but corresponding hex values do not make sense. These code pages are used by Microsoft when emulating the Apple Macintosh character sets. Microsoft Developer Network. What problem as you trying to solve?
The numbers themselves are to be taken as representing one thousandths of the current unit. Some code page vendors insufficiently document the meaning of all code point values, which decreases the reliability of handling textual data through various computer systems consistently. Email Required, but never shown. Another character set is Iran System encoding standard that was created by Iran System corporation for Persian language support.
Encoding of PDF text string - Stack Overflow
Isn't is good that you don't need to deal with that? This convention allows code page numbers to be used as metadata to identify the correct decoding algorithm when encountering binary stored data. When the top bit was made available for representing character data, a total of characters and control codes could be represented. Negative numbers shift the next glyph to the right adding more space to next glyph. An easier way to decode hex-encoded text strings is to use xxd -r -p instead of Ghostscript.
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