With further analysis the document has the following structure (amongst many other items).
Fm0 to Fm10 refers to Image Im0 (it is in reference directory). Positioning of images and other graphics in these XObjects are correct. Fm11 to Fm28 refers to Fm0 which contains Image Im0 (it is a reference directory). Positioning of all graphics in Fm11 to Fm28 correct, however position of Im0 in each form is in its original position and size and is incorrect. All form Matrix structure is 1 0 0 1 0 0. Any ideas? From: Anton Heymann [mailto:anton.heym...@cad-essence.com] Sent: 17 August 2016 15:00 To: 'Leonard Rosenthol' <lrose...@adobe.com>; podofo-users@lists.sourceforge.net Subject: Re: [Podofo-users] Question about Nested XObjects and Images Leonard Does this apply to images only? My experience with this particular case, is that all XObject contents (e.g. strokes and fills) are correct, however, the image data is inserted at it's original location inside the nested XObject. Where do I obtain further information about this?I am referring to XObject docs in PDF 32000_2000 - 8.10. Do I need to take the BBox into account when using images? Anton From: Leonard Rosenthol [mailto:lrose...@adobe.com] Sent: 17 August 2016 12:37 To: Anton Heymann <anton.heym...@cad-essence.com <mailto:anton.heym...@cad-essence.com> >; podofo-users@lists.sourceforge.net <mailto:podofo-users@lists.sourceforge.net> Subject: Re: [Podofo-users] Question about Nested XObjects and Images All coordinates inside a Form XObject are relative to that XObject – not to the primary PDF. Leonard From: Anton Heymann <anton.heym...@cad-essence.com <mailto:anton.heym...@cad-essence.com> > Date: Wednesday, August 17, 2016 at 3:55 AM To: "podofo-users@lists.sourceforge.net <mailto:podofo-users@lists.sourceforge.net> " <podofo-users@lists.sourceforge.net <mailto:podofo-users@lists.sourceforge.net> > Subject: [Podofo-users] Question about Nested XObjects and Images Does anybody have experience with rendering nested XObjects (forms), containing an Image xobject(s)? My problem is the positioning of the images. This is the scenario Fm28 contains Fm0 which contains Image Im0. All form matrices are set to 1 0 0 1 0 0 Im0 is renderer in it's original defined position, not within the BBox of the form it has been referenced. What rules need to be implemented to render the image in the correct location? I cannot find information regarding the positioning of the nested forms. When I render the BBox of each form, it is in the correct position. Anton Heymann
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