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Create a PDF file on an SD card ?

 
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pdfnow
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Create a PDF file on an SD card ?
PostPosted: Mon Jul 20, 2009 4:56 pm     Reply with quote
I can read/write to sd cards using a PIC18f2620. Does anyone think there is a way to create a simple pdf file on the card with text only. If the use want to save a file with Hello World on the first line, what would the pdf file look like? Could it be created with CCS C and fit on a 18F2620? Thanks.
Rohit de Sa



Joined: 09 Nov 2007
Posts: 282
Location: India

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PostPosted: Mon Jul 20, 2009 8:40 pm     Reply with quote
I don't think there is an easy way to create a pdf file using just text. You'd have to understand different parts of a PDF, which, IMHO, is not an easy task. PDFs are based on the PostScript language, and 'carry' with themselves several formatting options, images, strings, etc. Infact, a PDF is more like a script file, rather than a simple 'document'. This 'script file' like behaviour is what makes it platform independent.

From wiki:
Quote:
The PDF combines three technologies:

* A subset of the PostScript page description programming language, for generating the layout and graphics.
* A font-embedding/replacement system to allow fonts to travel with the documents.
* A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate.


Rohit
mbradley



Joined: 11 Jul 2009
Posts: 118
Location: California, USA

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PostPosted: Tue Jul 21, 2009 1:30 am     Reply with quote
I have in the past made a pdf template, then did a replace at specific byte locations to put my own text. Open a pdf in a hex editor, find the locations, that might help.

Other than that, look for some php source on creating pdf's.
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