Using GhostScript to get page size
Is it possible to get the page size (from e.g. a PDF document page) using GhostScript? I have seen the "bbox" device, but it returns the bounding box (it differs per page), not the TrimBox (or CropBox) of the PDF pages. (See http://www.prepressure.com/pdf/basics/page_boxes for info about page boxes.) Any other possibility?
Answer
Unfortunately it doesn't seem quite easy to get the (possibly different) page sizes (or *Boxes for that matter) inside a PDF with the help of Ghostscript.
But since you asked for other possibilities as well: a rather reliable way to determine the media sizes for each page (and even each one of the embedded {Trim,Media,Crop,Bleed}Boxes) is the commandline tool pdfinfo.exe. This utility is part of the XPDF tools from http://www.foolabs.com/xpdf/download.html . You can run the tool with the "-box" parameter and tell it with "-f 3" to start at page 3 and with "-l 8" to stop processing at page 8.
Example output:
C:\downloads>pdfinfo -box -f 1 -l 3 _IXUS_850IS_ADVCUG_EN.pdf Creator: FrameMaker 6.0 Producer: Acrobat Distiller 5.0.5 (Windows) CreationDate: 08/17/06 16:43:06 ModDate: 08/22/06 12:20:24 Tagged: no Pages: 146 Encrypted: no Page 1 size: 419.535 x 297.644 pts Page 2 size: 297.646 x 419.524 pts Page 3 size: 297.646 x 419.524 pts Page 1 MediaBox: 0.00 0.00 595.00 842.00 Page 1 CropBox: 87.25 430.36 506.79 728.00 Page 1 BleedBox: 87.25 430.36 506.79 728.00 Page 1 TrimBox: 87.25 430.36 506.79 728.00 Page 1 ArtBox: 87.25 430.36 506.79 728.00 Page 2 MediaBox: 0.00 0.00 595.00 842.00 Page 2 CropBox: 148.17 210.76 445.81 630.28 Page 2 BleedBox: 148.17 210.76 445.81 630.28 Page 2 TrimBox: 148.17 210.76 445.81 630.28 Page 2 ArtBox: 148.17 210.76 445.81 630.28 Page 3 MediaBox: 0.00 0.00 595.00 842.00 Page 3 CropBox: 148.17 210.76 445.81 630.28 Page 3 BleedBox: 148.17 210.76 445.81 630.28 Page 3 TrimBox: 148.17 210.76 445.81 630.28 Page 3 ArtBox: 148.17 210.76 445.81 630.28 File size: 6888764 bytes Optimized: yes PDF version: 1.4