[
https://issues.apache.org/jira/browse/PDFBOX-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997707#comment-13997707
]
Pat Hickey commented on PDFBOX-1895:
------------------------------------
The PDType0Font object has the decrypted /Ordering and /Registry values
attached to the CMap. It might be easier as a published fix to just decrypt the
values in the COSObjects directly, but the workaround I used was to copy the
registry and ordering from the PDType0Font object. This was a little tricky,
since the CMap is not exposed by PDType0Font.
*USE*
{code}
// after document.openProtection( new
StandardDecryptionMaterial( "" );
PDDocumentCatalog catalog = document.getDocumentCatalog();
List<?> pages = catalog.getAllPages();
for ( Object obj : pages ) {
PDPage page = (PDPage)obj;
PDResources resources = page.findResources();
Map< String, PDFont > fonts = resources.getFonts();
for ( Map.Entry< String, PDFont > entry :
fonts.entrySet() ) {
PDFont font = entry.getValue();
FixType0FontFromCMap.fixType0FontFromCMap( font
);
}
}
{code}
*WORKAROUND*
{code}
package com.bloomberg.glodas.pdf.util;
import org.apache.fontbox.cmap.CMap;
import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.font.PDFont;
import org.apache.pdfbox.pdmodel.font.PDType0Font;
public class FixType0FontFromCMap extends PDType0Font {
public FixType0FontFromCMap() {
super();
}
public FixType0FontFromCMap( COSDictionary fontDictionary ) {
super( fontDictionary );
}
private static final String cid_font_type0 =
COSName.CID_FONT_TYPE0.getName();
private static final String cid_font_type2 =
COSName.CID_FONT_TYPE2.getName();
public static void fixType0FontFromCMap( PDFont font ) {
if ( font instanceof PDType0Font ) {
COSBase cos = font.getCOSObject();
if ( cos == null || ! ( cos instanceof COSDictionary )
) {
return;
}
COSDictionary dict = (COSDictionary)cos;
FixType0FontFromCMap vis = new FixType0FontFromCMap(
dict );
CMap cmap = vis.cmap;
String decrypted_ordering = cmap.getOrdering();
String decrypted_registry = cmap.getRegistry();
cos = dict.getDictionaryObject(
COSName.DESCENDANT_FONTS );
if ( cos == null ) {
return;
}
COSArray array = (COSArray)cos;
for ( int ix = 0; ix < array.size(); ++ix ) {
cos = array.getObject( ix );
if ( cos != null && cos instanceof
COSDictionary ) {
COSDictionary descendants =
(COSDictionary)cos;
String type =
descendants.getNameAsString( COSName.TYPE );
String subtype =
descendants.getNameAsString( COSName.SUBTYPE );
if ( type == null || ! type.equals(
COSName.FONT.getName() ) ) {
continue;
}
if ( subtype == null || ! (
subtype.equals( cid_font_type0 ) || subtype.equals( cid_font_type2 ) ) ) {
continue;
}
cos = descendants.getDictionaryObject(
COSName.CIDSYSTEMINFO );
if ( cos == null || ! ( cos instanceof
COSDictionary ) ) {
continue;
}
COSDictionary info = (COSDictionary)cos;
info.setString( COSName.REGISTRY,
decrypted_registry );
info.setString( COSName.ORDERING,
decrypted_ordering );
}
}
}
}
}
{code}
> Type0 settings /Registry and /Ordering are not decrypted when writing document
> ------------------------------------------------------------------------------
>
> Key: PDFBOX-1895
> URL: https://issues.apache.org/jira/browse/PDFBOX-1895
> Project: PDFBox
> Issue Type: Bug
> Components: Writing
> Affects Versions: 1.8.3, 1.8.4
> Reporter: Pat Hickey
>
> When re-writing a document with font descriptions, Adobe Reader is unable to
> display the fonts in the document. Reader can display the fonts in the
> original document. The difference is that in the original document, the font
> descriptions are in lower object numbers than the font references; in the
> output document, the font descriptions are in higher object numbers than the
> font references. Is there a quick way to re-order them?
> Update: the PDF file in question is actually corrupt, but somehow modifying
> it with PDFBox causes it to no longer be readable with Adobe Reader.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
