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https://issues.apache.org/jira/browse/PDFBOX-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16378997#comment-16378997
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Tilman Hausherr edited comment on PDFBOX-4130 at 2/27/18 5:39 PM:
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Thank you... I ran your patch on my test set...
improved files:
- PDFBOX-3937-7CSTFGJFWQDXKXNURT3VV3MSVSKTZG47-p4.pdf
- your file
not improved:
- gs-bugzilla693663-p9.pdf
- PDFBOX-122.pdf
- bug864847.pdf
- PDFJS-7523.pdf
worsened:
- PDFBOX-3964.pdf: "6.0" should be displayed as "6 . 0"
I then reran the test with a slight change, starting {{getWidthForCID}} like
this:
{code:java}
private float getWidthForCID(int cid, int code)
{
Float width = widths.get(cid);
if (width == null && dict.getDictionaryObject(COSName.DW) instanceof
COSNumber)
{
width = getDefaultWidth();
}
{code}
And now gs-bugzilla693663-p9.pdf and your file have improved, but not
PDFBOX-3937-7CSTFGJFWQDXKXNURT3VV3MSVSKTZG47-p4.pdf.
I wonder if you could have a look at the last patch in PDFBOX-3457 to see
whether this inspires you somehow?
was (Author: tilman):
improved files:
- PDFBOX-3937-7CSTFGJFWQDXKXNURT3VV3MSVSKTZG47-p4.pdf
- your file
not improved:
- gs-bugzilla693663-p9.pdf
- PDFBOX-122.pdf
- bug864847.pdf
- PDFJS-7523.pdf
worsened:
- PDFBOX-3964.pdf: "6.0" should be displayed as "6 . 0"
I then reran the test with a slight change, starting {{getWidthForCID}} like
this:
{code:java}
private float getWidthForCID(int cid, int code)
{
Float width = widths.get(cid);
if (width == null && dict.getDictionaryObject(COSName.DW) instanceof
COSNumber)
{
width = getDefaultWidth();
}
{code}
And now gs-bugzilla693663-p9.pdf and your file have improved, but not
PDFBOX-3937-7CSTFGJFWQDXKXNURT3VV3MSVSKTZG47-p4.pdf.
I wonder if you could have a look at the last patch in PDFBOX-3457 to see
whether this inspires you somehow?
> When W entries not included in CIDFont get width from font by code, Improve
> display of some PDF files.
> ------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-4130
> URL: https://issues.apache.org/jira/browse/PDFBOX-4130
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 2.0.8, 3.0.0 PDFBox
> Reporter: chunlinyao
> Assignee: Tilman Hausherr
> Priority: Major
> Attachments: DateTest.pdf, after.png, before.png, diff.patch
>
>
> Some PDF use CJK font without embedded subset displayed incorrectly, the
> alphabet become wider.
> This is before the patch.
> !before.png!
>
> This is after the patch.
> !after.png!
> The test file [^DateTest.pdf]
> ^This patch only get width from font when these isn't a W entry in CIDFont.
> If there is an W entry, then any cid not in W entries will return default
> width.^
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