finding the page size of a pdf file

[ids4ids]

How can I find the page size of a PDF file from my vfp application ?
(I want to know if a PDF file is format A4 or A3)

 

[Mike Lewis]

It shouldn't be too difficult to work this out.

Create two identical PDFS -- one for A4 and the other for A3. Open each of them in a text editor. You'll see a block of text at the start of the file, this being the file header. Somewhere in there is the page size. This is plain text, so you only have to look to see what's different between the A3 and the A4 versions.

Once you know that, it should be easy to read the file into a variable (using FILETOSTR()) and test the relevant characters.

Mike

__________________________________
Mike Lewis (Edinburgh, Scotland)

My Visual FoxPro site: www.ml-consult.co.uk

 

[ids4ids]

Thanks Mike but it is more than this.
Using FILETOSTR() you must find "MediaBox" parameter.
MediaBox give you the paper size of pdf document in points.
ex. A4 = 595 x 842 points
For more information you can read PDFReference16.pdf from

http://partners.adobe.com/public/developer/en/pdf/PDFReference16.pdf

 

[Mike Lewis]

So, what's your question?

Mike


__________________________________
Mike Lewis (Edinburgh, Scotland)

My Visual FoxPro site: www.ml-consult.co.uk

 

[ids4ids]

It's just additional information for who want to do this.

 

[ChrisRChamberlain]

ids4ids

What you suggest will work for a single page pdf but will not be reliable for multipaged pdfs.

It is possible for a pdf to be made up of different contacanated postscript files each with a different page size.

Apart from special pages sizes created by applications there are 39 known sizes, some of which are duplicates in size but differ in name.

One freeware option would be to use the ImageMagick object or the binary identify.exe to determine the page size(s)

FAQ184-2483 - answering getting answered.​

Chris
PDFcommander.com
PDFcommander.co.uk