[PDFBOX-3257] XMPSchemaBasic setCreateDate and setModifyDate don't work if already set

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.8.8, 1.8.11
• Fix Version/s: 1.8.12
• Component/s: JempBox
• Environment: using pdfbox from maven
• Assignee: Tilman Hausherr
• Reporter: Svetlozar Argirov
• Created: 02/Mar/16 08:21
• Updated: 25/Apr/16 17:24
• Resolved: 02/Mar/16 18:32

Description

When setting XMPSchemaBasic with in certain PDFs , setCreateDate and setModifyDate do not work if the dates are already set in the pdf.

So this will not work as expected:

XMPSchemaBasic bi = xmp.getBasicSchema();
bi.setCreateDate(someDate);
bi.setModifyDate(anotherDate);

Setting other metadata fields works as expected, except for these two.

I found a workaround . If I set the fields to null, before setting them to a new value everything works as expected:

XMPSchemaBasic bi = xmp.getBasicSchema();
bi.setCreateDate(null);
bi.setCreateDate(someDate);
bi.setModifyDate(null);
bi.setModifyDate(anotherDate);

But still it feels like there is something wrong with the way setting these two dates work.