There are command-line utilities that will take a pdf page and render it onto an image and store the image as a standard file. Some work with multiple page documents. These can work with the LiveCode shell() function.
Dar On Sep 29, 2011, at 11:02 AM, Joe Lewis Wilkins wrote: > I find all of this somewhat tantalizing, but the only way I've found to make > a PDF document useful in what I'm doing is to take a screen shot of it and > then paste or import it as an image into the other application. Though I do > this mostly in MacDraft, I should imagine that the same technique can be used > in LC, since I often use MD as a method of transitioning different kinds of > images into LC. Of course I'm interested in what you "see" in a PDF; not what > else there might be there, of which I know nothing. I don't understand all of > this "parsing" of data from or in a PDF. > > Joe Wilkins > > > On Sep 29, 2011, at 9:50 AM, Dar Scott wrote: > >> >> On Sep 29, 2011, at 9:24 AM, Ken Ray wrote: >>> Are you looking at just extracting the images? Or other relevant parts of >>> the PDF? The reason I ask is that it looks like binary data is always >>> contained between two lines: "stream" and "endstream", so extracting just >>> the streaming data should be pretty quick to do; although the next step >>> would be going to read the bytes of what was extracted and then determine >>> if it's an image or some other thing that had to be represented with a >>> "stream" in the PDF... >> >> >> There are a couple issues that complicate this in general. >> >> The parameters needed to process the stream need to be parsed and they can >> be far away. >> >> There are many stream filters (some complicated compression) and they can be >> nested. I looked at a corpus of PDF files and, yeah, a several are used in >> practice. >> >> However, if one needs to parse the output of a specific program or a >> specific model of a scanner, then the work to do parsing in LiveCode is a >> lot less. >> >> I hope that makes sense; I'm a little under the weather today. >> >> Dar > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode --------------------------- Dar Scott dba Dar Scott Consulting 8637 Horacio Place NE Albuquerque, NM 87111 Lab, home, office phone: +1 505 299 9497 For Skype and fax, please contact. d...@swcp.com Computer Programming and tinkering, often making LiveCode libraries and externals, sometimes writing associated microcontroller firmware. --------------------------- _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
