Really? When I tried encoding JPEGs into PDFs, the library kept throwing an
exception. When I dove into the code, I found this in PdfFiltersPrivate.cpp:
void PdfDCTFilter::BeginEncodeImpl(){ PODOFO_RAISE_ERROR(
ePdfError_UnsupportedFilter );}
void PdfDCTFilter::EncodeBlockImpl( const char*, pdf_long ){
PODOFO_RAISE_ERROR( ePdfError_UnsupportedFilter );}
void PdfDCTFilter::EndEncodeImpl(){ PODOFO_RAISE_ERROR(
ePdfError_UnsupportedFilter );}
This is where I got the impression that JPEGs weren't supported. Yes, JPEG
loading is implemented, I just can't add them to a document. This seems
bizarre to me considering how libjpeg is right there, with this library...Thank
you.
Date: Sat, 31 Aug 2013 11:34:47 +0200
Subject: Re: [Podofo-users] PoDoFo doesn't support JPEG encoding filters?!
From: domseich...@googlemail.com
To: spam_receptac...@hotmail.com
CC: podofo-us...@lists.sf.net
The DCTDecodeFilter ist implemented and supported. Also, loading JPEGs into a
PdfImage is available (see for example the podofoimg2pdf tool)
Cheers, Dominik
On Fri, Aug 30, 2013 at 10:25 PM, First Second <spam_receptac...@hotmail.com>
wrote:
I was making some serious progress in making something that can modify PDFs
when I ran into the bizarre situation where PoDoFo apparently hasn't
implemented JPEG encoding. Perhaps it was foolish of me to not check but since
it linked against libjpeg, I naturally assumed that JPEG images would work. I
would never have guessed that they only half work.
Why is JPEG encoding not supported? You have libjpeg right there, you even use
it for decoding. Why not use it for encoding too?
Thank you...
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