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https://issues.apache.org/jira/browse/FOP-2660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15662109#comment-15662109
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John Brown commented on FOP-2660:
---------------------------------

A cropped PDF will work if it is cropped using the method described at 
http://stackoverflow.com/questions/6183479/cropping-a-pdf-using-ghostscript-9-01
i.e,
gswin32c.exe                     ^
  -o cropped.pdf                 ^
  -sDEVICE=pdfwrite              ^
  -c "[/CropBox [24 72 559 794]" ^
  -c " /PAGES pdfmark"           ^
  -f uncropped-input.pdf
where 24,72 = coordinates of the bottom left corner of the CropBox and
559,794 = coordinates of top right corner of the CropBox and
page units = points (1/72 inch), 0,0 = bottom left corner of page.

However, Briss is much more convenient.

> Cannot add cropped pdf as fo:external-graphic 
> ----------------------------------------------
>
>                 Key: FOP-2660
>                 URL: https://issues.apache.org/jira/browse/FOP-2660
>             Project: FOP
>          Issue Type: Bug
>          Components: image/unqualified
>    Affects Versions: trunk
>         Environment: Windows 10, FOP r1768353, FOP PDF Images plugin 2.1.0
>            Reporter: John Brown
>         Attachments: lorem.pdf, lorem_cropped.pdf, test.fo, test.pdf
>
>
> My original pdf (created by printing to PDF Creator 
> (http://www.pdfforge.org/pdfcreator) works as an external graphic in
> test.fo. This PDF has 1-inch borders which I removed using Briss
> (http://briss.sourceforge.net/). The cropped PDF image is not displayed in
> test.pdf. I think that it is present but invisible because when I look at the
> document's properties (Fonts), I see two fonts but lorem_cropped.pdf has
> 1 font.
> To reproduce:
> <!-- BEGIN test.fo -->
> <?xml version="1.0"?>
> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format";>
>   <fo:layout-master-set>
>     <fo:simple-page-master master-name="A4-portrait" page-height="29.7cm" 
> page-width="21.0cm" margin="2cm">
>       <fo:region-body/>
>     </fo:simple-page-master>
>   </fo:layout-master-set>
>   <fo:page-sequence master-reference="A4-portrait">
>     <fo:flow flow-name="xsl-region-body">
>       <fo:block>
>             Hello, World!
>       </fo:block>
>       <fo:block>
>         <fo:external-graphic src="lorem_cropped.pdf" /> <!-- External graphic 
> here -->
>       </fo:block>
>     </fo:flow>
>   </fo:page-sequence>
> </fo:root>
> <!-- END test.fo -->
> lorem.pdf is a "Lorem ipsum" paragraph printed to PDF Creator on letter
>  size paper.
> lorem_cropped.pdf is lorem.pdf cropped to contain just the paragraph
> with minimal whitespace.
> test.pdf is the output of
> C:\>fop test.fo test.pdf
> I am using fop SVN r1768353 (2016-10-20 17:03:59 -0500) and the fop
> PDF Images plugin from
> https://dist.apache.org/repos/dist/dev/xmlgraphics/binaries/ on
> Windows 10.
> You also need the input PDFs. How do I send them to you?
> Regards,
> John Brown.



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