[FOP-3179] bounding box on image is not where it should be (PDF/UA)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.9
• Component/s: image/unqualified
• Environment: Windows 10
• Assignee: Unassigned
• Reporter: Andreas Schlegel
• Created: 17/May/24 08:33
• Updated: 04/Jun/24 13:22

Description

Our code generates a PDF file with image and bounding box. But the image and bounding box are not on top of each other (see attached example.pdf and open it with axesPDF ).

If the bounding box is missing, the image cannot be displayed at all or not correctly in alternative representations.

If you use the axesPDF tool (https://www.axes4.com/de/software-services/axespdf/download), you can see that the bounding box is always placed in the bottom left corner of the respective page.

 

PAC3 doesn't show any error except white spaces instead of images (screenreader preview) but this is not classified as error.

 

• • • Settings:
       
      pom.xml:
      <version.fop>2.9</version.fop>
       
      <dependency>
        <groupId>org.apache.xmlgraphics</groupId>
        <artifactId>fop</artifactId>
        <version>${version.fop}</version>
      </dependency>
       
       
      fop.conf
        <renderers>
          <renderer mime="application/pdf">
            <version>1.6</version>
            <pdf-ua-mode>PDF/UA-1</pdf-ua-mode>  
          ...
       
      xsl:
            <fo:block-container  position="fixed"  left="24mm" top="24mm">
               <fo:block role="P" position="fixed"  left="24mm" top="24mm">
                  <fo:external-graphic position="fixed"  left="24mm" top="24mm"
                     src="any-image.png" fox:alt-text="xyz">
                  </fo:external-graphic>
               </fo:block>
            </fo:block-container>