draw on a specific pdf page

[arno]

I have a command like this:

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mogrify -density 300 -compress ZIP -fill none -stroke green -strokewidth 5 -draw 'rectangle 200,200 800,300' Page.com.pdf

With this it creates a nice rectangle. However, if my pdf has more then 1 page, it draws on all of them. If i specify a page number it deletes the rest of the pages.

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mogrify -density 300 -compress ZIP -fill none -stroke green -strokewidth 5 -draw 'rectangle 200,200 800,300' Page.com.pdf[0]

Is it possible to apply the changes to a specific page without deleting the rest?

[anthony]

First please note that Imagemagick is not designed for vector images like PDF!
It can do it, but you need a lot of care and understanding of what is going on to get acceptable results.

See A word about Vector Image formats
http://www.imagemagick.org/Usage/formats/#vector


Having said that. Yes you can!
You find can not use mogrify. But convert. You read in the PDF, extract the old page into parenthesis, modify it ans then replace the original page.

See Combining Image Sequence Operations
http://www.imagemagick.org/Usage/basics/#seq_combine

[arno]

Thanks! I'm using scans, so the pdf is already araster image in a pdf. I almost got it working. Next problem appears. I tried both commands (the enters mine for readability. Original command doesn't have enters):

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convert -density 300 -compress ZIP file1.pdf  \( -clone 0 -fill none -strokewidth 9 -stroke blue -draw 'rectangle 1595,289 1876,342' 
																	 -stroke purple -draw 'rectangle 250,1188 1077,1266' 
																	 -stroke green -draw 'rectangle 399,1873 1946,1930' \)
	-swap 0 +delete  -append file2.pdf

Code: Select all

convert -density 300 -compress ZIP  file1.pdf  \( -clone 0 -fill none -strokewidth 9 -stroke blue -draw 'rectangle 1595,289 1876,342' 
																	 -stroke purple -draw 'rectangle 250,1188 1077,1266' 
																	 -stroke green -draw 'rectangle 399,1873 1946,1930' \)
	-delete 1 -insert 1 -append file2.pdf

The original has 2 pages, the result has got 1 long page. I'm using this with pdf and multiple-page tiff's. I tried '+repage' and '-page a4' but that doesn't seem to affect the result.


Edit - NVM, deleting -append wasn't that difficult.

[anthony]

Remove the append! That was just for the example for its results display.