Tilman Hausherr created PDFBOX-4508:
---------------------------------------
Summary: Unexpected slowness filling forms with CJK
Key: PDFBOX-4508
URL: https://issues.apache.org/jira/browse/PDFBOX-4508
Project: PDFBox
Issue Type: Improvement
Components: AcroForm
Affects Versions: 2.0.14
Reporter: Tilman Hausherr
Attachments: NotoSansCJKsc-Medium.ttf, i-130.pdf
As reported by William Pietri in the users mailing list:
{quote}
If I go through this and fill every field with roman text using the default
font, it takes circa 2 seconds, which is fine. If I fill it with an added
Arabic font, it takes circa 7 seconds. And if I use a CJK font, it takes circa
140 seconds, which seems like a lot. This is with PDFBox 2.0.14 and the Oracle
1.8.201 JDK on Linux.
{quote}
And the message "OpenType Layout tables used in font NotoSansCJKsc-Medium are
not implemented in PDFBox and will be ignored " comes up for every field, which
suggests that the font is opened each time.
I can confirm this, also with a different font (ArialUni).
{code}
PDDocument doc = PDDocument.load(new File("i-130.pdf"));
PDResources res = doc.getDocumentCatalog().getAcroForm().getDefaultResources();
PDFont font = PDType0Font.load(doc, new FileInputStream(new
File("NotoSansCJKsc-Medium.ttf")), false);
String fontName = res.add(font).getName();
long start = System.currentTimeMillis();
for (Iterator<PDField> it =
doc.getDocumentCatalog().getAcroForm().getFieldIterator(); it.hasNext();)
{
PDField field = it.next();
if (field instanceof PDTextField)
{
PDTextField textField = (PDTextField) field;
textField.setDefaultAppearance("/" + fontName + " 0 Tf 0 g");
textField.setValue("中国");
long end = System.currentTimeMillis();
System.out.println("Filled " + textField.getFullyQualifiedName() + " in
" + (end - start) + "ms");
start = end;
}
}
doc.save(new File("i-130-filled.pdf"));
{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
