On Tue, 2015-12-08 at 17:22 -0500, Jose Cortez wrote:
> Is there any PNG export support? I was able to search the mailing
> list, it looks like there’s PNG import support. I see PdfImage has
> the GetSupportedFormats() which only has JPEG as an entry for this
> PDF (though I’m certain that the source image was a PNG). I think it
> would be great to be able to export images with alpha.
Hi,
PdfImage::GetSupportedFormats() returns a list of image formats the
PoDoFo library had been built with, not the image formats the currently
opened PDF file was created with.
Check what PdfImage::LoadFromPngData() does and reverse the process.
The tricky part will also be to read the PdfDictionary and getting the
right stream. If you've a working code for a JPEG images, then some
parts can be reused here as well.
Bye,
zyx
--
http://www.litePDF.cz i...@litepdf.cz
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