I realize my answer from yesterday was possibly wrong, because a bold
font may have different metrics (glyph sizes) than his non-bold
counterpart. That would have to be checked first.
Now if all files come from the same sources and have the same structure,
you could go through the font resources and change names like
AAAAAD+DejaVuSans to AAAAAD+DejaVuSans-Bold. Very dirty.
Tilman
Am 28.06.2016 um 14:06 schrieb Lachezar Dobrev:
I am not expecting anything to do with the library code changing.
I was hoping there is some bulk-font-change technique that I can do with
the PDF after loading, so that text with normal font starts using the bold
one. Like iterating the document tree and doing something with it before
rendering the pages.
2016-06-27 19:39 GMT+03:00 Tilman Hausherr <thaush...@t-online.de>:
Am 27.06.2016 um 18:10 schrieb Lachezar Dobrev:
Hey all,
I need to print PDFs to images to be forwarded to a low-resolution
printer (200 dpi).
Printing works (Yay!), and the ability to specify colour space and
resolution helps immensely.
When reading the PDFs I get these error messages:
VI 27, 2016 5:53:39 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType2Font
getawtFont
INFO: Can't read the embedded font AAAAAC+DejaVuSans-Bold
VI 27, 2016 5:53:39 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType2Font
getawtFont
INFO: Using font DejaVu Sans Bold instead
VI 27, 2016 5:53:39 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType2Font
getawtFont
INFO: Can't read the embedded font AAAAAD+DejaVuSans
VI 27, 2016 5:53:39 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType2Font
getawtFont
INFO: Using font DejaVu Sans instead
This looks like something I can live with (fonts being substituted),
but
I'm willing to work on that, since text is not Latin, and missing glyphs
in
system available fonts is a thing.
However due to the low resolution, the fact that the printer is
Black-And-White (not Gray-Scale!) much of the text becomes grainy and
disconnected (thin parts of the letters missing), making the text
extremely
hard to read.
Is there any way to make all fonts bold (or bold-er), so that the text
(after being converted to black-and-white) would be easier to read when
printed in low-resolution? I can not perform any post-rendering
enhancements, because there are bar-codes in the printed content that
become unreadable if smeared or thickened.
I'm fixed to using PDFBox 1.8.1 (that's what's available in the
project).
There's nothing that can be done in PDFBox, as you are bound to a version
(and I assume you can't modify it) and there is no feature like you
describe. You could replace the font in the font directory but this would
likely have sideeffects on other applications.
Tilman
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