Hello Fangqiao,
I am able to render that file with PDFBox 2.0.7. You can see it at
http://imgur.com/a/UOfRl
In the log I get this:
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeKaitiStd-Regular
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeKaitiStd-Regular
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeKaitiStd-Regular
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeKaitiStd-Regular
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeKaitiStd-Regular
Warning [PDCIDFontType0] Using fallback ArialUnicodeMS for CID-keyed
font AdobeSongStd-Light
Warning [PDCIDFontType0] Using fallback MicrosoftYaHei for CID-keyed
font STSong-Light
Your invoice does not have its fonts embedded. The messages indicate
that PDFBox has chosen to use the fonts ArialUnicodeMS and
MicrosoftYaHei to display.
Either you don't have these fonts installed, or maybe you used an older
PDFBox version?
Tilman
Am 19.08.2017 um 09:19 schrieb YE ...:
Hi Tilman,
Thanks for the quick reply. I will check for commercial solutions with font
hinting you mentioned here.
I have also included the links to the attachments mentioned in my previous
email in case you want to take a closer look.
PDF file:
https://shujubiji.cn/uppv/bjPhoto/d5418a966daecda62bcf056ddc1e79c99a4c6546/1503126757317/chinese_invoice.pdf?zid=__itemtoken__fe4bd85ea612752d11b4fdb02ff43c8871f9bc1c
You need to download it then use a PDF reader to open it so Chinese characters
can be shown correctly.
Converted image:
https://shujubiji.cn/uppv/bjPhoto/d5418a966daecda62bcf056ddc1e79c99a4c6546/1503126770469/chinese_invoice_1.jpg?zid=__itemtoken__6de80b84edb217bb37a19218bcec1eb78a24bcfc
Screenshot of the originally PDF displayed in PDF reader correctly:
https://shujubiji.cn/uppv/bjPhoto/d5418a966daecda62bcf056ddc1e79c99a4c6546/1503126791380/screenshot_from_2017_08_17_17_12_03.png?zid=__itemtoken__a7c4267ccd9597273a7d0286cb3353b1541a9ee1
Best regards,
Fangqiao
________________________________
From: Tilman Hausherr <[email protected]>
Sent: Friday, August 18, 2017 4:18 PM
To: [email protected]
Subject: Re: PDFbox unable to render Chinese font correctly when converting pdf
to images
Hello Fangqiao,
Your files didn't get through, you must upload them to a sharehoster.
But I suspect that this is a known problem with chinese fonts, the cause
is explained here:
https://issues.apache.org/jira/browse/PDFBOX-3293
[PDFBOX-3293] Chinese font glyphs with overlapping paths
...<https://issues.apache.org/jira/browse/PDFBOX-3293>
issues.apache.org
Font glyphs with overlapping paths may be rendered in correctly, especially
when the font size is small. Sadly, the Traditional Chinese edition of Windows
bundled ...
How to fix it - by implementing font hinting. Which we haven't done.
There is no workaround, sadly. (Except of course use better fonts when
creating the PDF).
There are some commercial java products (google for them). At least two
of them have implemented font hinting (the others I don't know).
Sorry for not having better news.
Tilman
Am 18.08.2017 um 11:56 schrieb YE ...:
Hi,
I am from China and using PDFBox to convert pdf files to images. It
worked excellently in most cases. Thanks a lot for the team's great work.
However recently I used it to convert some invoices in PDF to images
and then some Chinese characters weren't converted correctly. Attached
is a sample PDF file, converted image and a screen shot of the
original PDF opened in PDF reader, which displayed all Chinese correctly.
I am seeking help from the community:
- what's the possible cause for the problem?
I guess that in the original pdf file some Chinese characters' font
wasn't set correctly.
- how to fix it?
If the above guess is correct, is there a way to detect correct font
type and set the correct font for conversion?
- or is there other solution that can fix the problem?
Many thanks,
Fangqiao
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