Hi Mark,
Are you able to attach your PDF so we can replicate this?
Thanks,
Chris
On 15/01/2026 17:09, Mark Gibson wrote:
Hi,
I thought I’d just poll the community on this one, as I can’t see it
reported anywhere.
We have a PDF that lists its fonts using Japanese characters (in this
case, it’s MS Gothic and MS PGothic, where “Gothic” actually is in
Japanese characters).
When trying to import that image using fo:external-graphic
(fop-pdf-images.jar), we get an exception with the message “Only 8-bit
characters allowed by this implementation”.
In reviewing FOP code, org.apache.fop.pdf.PDFName.toHex() throws this
exception if the character id is > 256.
Does this mean FOP cannot handle cases where the names of PDF records
are not in simple ascii range?
Caused by: java.lang.IllegalArgumentException: Only 8-bit characters
allowed by this implementation
at org.apache.fop.pdf.PDFName.toHex(PDFName.java:78)
at org.apache.fop.pdf.PDFName.escapeName(PDFName.java:64)
at org.apache.fop.pdf.PDFName.<init>(PDFName.java:42)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.cloneForNewDocument(PDFCloner.java:106)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.readCOSDictionary(PDFCloner.java:154)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.cloneForNewDocument(PDFCloner.java:104)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.readCOSObject(PDFCloner.java:134)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.cloneForNewDocument(PDFCloner.java:84)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.readCOSDictionary(PDFCloner.java:154)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.cloneForNewDocument(PDFCloner.java:104)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.readCOSDictionary(PDFCloner.java:154)
at
org.apache.fop.render.pdf.pdfbox.PDFCloner.cloneForNewDocument(PDFCloner.java:104)
at
org.apache.fop.render.pdf.pdfbox.PDFBoxAdapter.cloneForNewDocument(PDFBoxAdapter.java:141)
at
org.apache.fop.render.pdf.pdfbox.PDFBoxAdapter.createStreamFromPDFBoxPage(PDFBoxAdapter.java:212)
at
org.apache.fop.render.pdf.pdfbox.AbstractPDFBoxHandler.createStreamForPDF(AbstractPDFBoxHandler.java:111)
at
org.apache.fop.render.pdf.pdfbox.PDFBoxImageHandler.handleImage(PDFBoxImageHandler.java:77)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
