[PDFBOX-1564] Extending COSName to produce PDF/A with correct OutputIntents

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.8.2
• Fix Version/s: 1.8.3, 2.0.0
• Assignee: Guillaume Bailleul
• Reporter: Elyes Lehtihet
• Created: 12/Apr/13 10:02
• Updated: 21/Jan/15 19:52
• Resolved: 08/Dec/13 14:40

Description

Hello,
First of all, thanks for this tool, found it very useful.
Below some sample code to include (sRGB) ICC profile and corresponding
OutputIntents to the generated PDF/A. The produced PDF successfully
passes validation.
It would be nice to have the COSName' extension included in the next
release so we won't have to use a homemade build.
Regards,
Elyes

---

• Extension in COSName (org.apache.pdfbox.cos)

public static final COSName OutputIntents = new COSName( "OutputIntents" );
public static final COSName OutputIntent = new COSName( "OutputIntent" );
public static final COSName DestOutputProfile = new COSName( "DestOutputProfile" );

• Add new classes

public class OutputIntents implements COSObjectable {
private COSDictionary dictionary;
public OutputIntents(PDDocument doc, InputStream colorProfile) throws Exception

{ dictionary = new COSDictionary(); dictionary.setItem(COSName.TYPE, COSName.OutputIntent); dictionary.setItem(COSName.S, COSName.GTS_PDFA1); DestOutputProfile dop = new DestOutputProfile(doc,colorProfile, false); dop.configure(); dictionary.setItem(COSName.DestOutputProfile, dop); }

public COSBase getCOSObject() {
return dictionary;
}
public COSDictionary getDictionary()

{ return dictionary; }

public void setInfo( String value )

{ dictionary.setString("Info", value); }

public void setOutputCondition( String value )

{ dictionary.setString("OutputCondition", value); }

public void setOutputConditionIdentifier( String value )

{ dictionary.setString("OutputConditionIdentifier", value); }

public void setRegistryName( String value )

{ dictionary.setString("RegistryName", value); }

}

public class DestOutputProfile extends PDStream {

public DestOutputProfile(PDDocument document) {
super(document);
}

public DestOutputProfile(COSStream str) {
super(str);
}

public DestOutputProfile(PDDocument doc, InputStream str)
throws IOException {
super(doc, str);
}

public DestOutputProfile(PDDocument doc, InputStream str, boolean filtered)
throws IOException {
super(doc, str, filtered);
}

public void configure(){
try {
getStream().setFilters(COSName.FLATE_DECODE);
getStream().setInt( COSName.LENGTH, getByteArray().length );
getStream().setInt(COSName.N, 3);
addCompression();
}
catch (Exception e) {
e.printStackTrace();
System.exit(-1);
}
}
}

• Sample code to include output intent

PDDocumentCatalog cat = doc.getDocumentCatalog();
COSDictionary root = (COSDictionary)cat.getCOSObject();

/* Here you have to download .icc profile */
InputStream colorProfile =
OutputIntents.class.getResourceAsStream("/test/color/sRGB.icc");

OutputIntents oi = new OutputIntents(doc, colorProfile);
oi.setInfo("sRGB IEC61966-2.1");
oi.setOutputCondition("sRGB IEC61966-2.1");
oi.setOutputConditionIdentifier("sRGB IEC61966-2.1");
oi.setRegistryName("http://www.color.org");

COSArray outputIntents = new COSArray();
outputIntents.add(oi);

root.setItem("OutputIntents", outputIntents);

Issue Links

• is related to: PDFBOX-2621 Files created with CreatePDFA.java are not PDF/A-1b