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I have a case here which I will need to convert PDF files to preferably PNG's at specified resolution.

I know imagemagick have some kind of conversion using convert.exe but this crashes for me everytime, I am using Windows 7 x64.

the prefered method to convert would be something integrated in the delphi 7 components, but I can also use commandline if that is what is needed to make this work.

My main concern is that I don't want this to just crash for people with a similar message http://elhombre.members.winisp.net/vista_watson01.png

kludg
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Plastkort
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  • Our Delphi product PDFtoolkit has a RenderToStream function that can render PDF page contents to an image or a Tcanvas object. Recently, I wrote an article on [how to convert PDF to multipage TIFF images](http://www.gnostice.com/nl_article.asp?id=194&t=Convert_PDF_Documents_to_Multipage_TIFF_Images_In_Delphi). TIFF is a bit complicated. If your requirements are just BMP or JPG, I promise you it is much more simpler. – BZ1 Feb 07 '11 at 04:53

2 Answers2

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To extract from PDFs from Imagemagick you must have Ghostscript properly installed and a key set in the Windows Registry (HKLM\Software\GPL Ghostscript); on 64bit machines an additional Wow6432Node level stands inside this path.

Otherwise use pdftoppm from xpdf and then use imagemagick to convert it to your raster format, if imagemagick fails. xpdf does not rely on delegates (like Ghostscript for PDF) for extracting from PDFs.

Benoit
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  • Sorry for an offtopic but do you happen to know a similar way to convert word documents to images? – Kaitnieks Feb 04 '11 at 09:36
  • @Kaitnieks: maybe with libgsf, from GNOME. No idea otherwise. You can use OLE2 automation to have Word make a PDF file and then you're back to the first problem. – Benoit Feb 04 '11 at 09:50
  • ok, thanks. Since I need both pdfs and word docs, the 2nd way sounds great, if it's that easy :) – Kaitnieks Feb 04 '11 at 09:53
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You might also want to check out QuickPDF. It's an all Delphi solution, is really easy to use, has an enthusiastic user group, and an extensive manual of its hundreds of functions and is supported by Karl De Abrew whose name I have seen in PDF circles for lots of years. With its RenderPageToStream function with options for output in 8 different graphic formats, I made my own PDF viewer in about an hour.

jrodenhi
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