Help test a LMTX bug fix: tweaks in PDF generation

Help test a LMTX bug fix: tweaks in PDF generation

[Leah Neukirchen via ntg-context]

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Hi,

last week we had a long thread about non-printing PDF on this list and
together with Hans I tracked down the issue and we found a fix.
Since it changes some details of how PDFs are generated by LMTX, we'd
like to test this change first on a wide range of software and
printers.

So please: Try to preview and then try to print the attached PDF;
and report back if either preview or printout does not look like
the attached reference PNG image (i.e. something is missing,
the fonts look different, or have wrong relative size.)

If you use other PDF tools in your workflow, please also check they
continue to work as before (and just as well as with MKIV-generated PDFs).


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[-- Attachment #3: fontmatrixtest.png --]
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Thank you very much,
-- 
Leah Neukirchen  <leah@vuxu.org>  https://leahneukirchen.org/

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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Henning Hraban Ramm via ntg-context]

Am 09.10.22 um 17:33 schrieb Leah Neukirchen via ntg-context:
> Hi,
> 
> last week we had a long thread about non-printing PDF on this list and
> together with Hans I tracked down the issue and we found a fix.
> Since it changes some details of how PDFs are generated by LMTX, we'd
> like to test this change first on a wide range of software and
> printers.
> 
> So please: Try to preview and then try to print the attached PDF;
> and report back if either preview or printout does not look like
> the attached reference PNG image (i.e. something is missing,
> the fonts look different, or have wrong relative size.)
> 
> If you use other PDF tools in your workflow, please also check they
> continue to work as before (and just as well as with MKIV-generated PDFs).

Hi Leah, thank you!

I viewed and printed the PDF with pdf.js in Thunderbird, Apple Preview 
and Adobe Acrobat Pro 9 to my Kyocera FS-C5100DN color laserprinter via 
KPDL (PS-compatible) driver.
I don’t see any font problems, but neither text nor the bar are 100% 
black – is this intentional? Doesn’t look like RGB black, there are no 
other colors involved except in the printout from pdf.js.

pdf.js seems to print as image and blurs the outlines. (I never tried to 
print from pdf.js before, is this normal?)

Hraban
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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Leah Neukirchen via ntg-context]

Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl> writes:

> Am 09.10.22 um 17:33 schrieb Leah Neukirchen via ntg-context:
>> Hi,
>> last week we had a long thread about non-printing PDF on this list
>> and
>> together with Hans I tracked down the issue and we found a fix.
>> Since it changes some details of how PDFs are generated by LMTX, we'd
>> like to test this change first on a wide range of software and
>> printers.
>> So please: Try to preview and then try to print the attached PDF;
>> and report back if either preview or printout does not look like
>> the attached reference PNG image (i.e. something is missing,
>> the fonts look different, or have wrong relative size.)
>> If you use other PDF tools in your workflow, please also check they
>> continue to work as before (and just as well as with MKIV-generated PDFs).
>
> Hi Leah, thank you!
>
> I viewed and printed the PDF with pdf.js in Thunderbird, Apple Preview
> and Adobe Acrobat Pro 9 to my Kyocera FS-C5100DN color laserprinter
> via KPDL (PS-compatible) driver.
> I don’t see any font problems, but neither text nor the bar are 100%
> black – is this intentional? Doesn’t look like RGB black, there are no
> other colors involved except in the printout from pdf.js.

Should be all black (CMYK black), but we didn't change this.
Picking from the screenshot I get #000000 on Linux with evince, mupdf,
pdf.js.

> pdf.js seems to print as image and blurs the outlines. (I never tried
> to print from pdf.js before, is this normal?)

Yes, unfortunately.  But not related to our changes.

> Hraban

-- 
Leah Neukirchen  <leah@vuxu.org>  https://leahneukirchen.org/
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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Keith McKay via ntg-context]

Hi,

I printed the file from my Apple mac mini M1 wirelessly to my HP Color 
LaserJet MFP M283fdw from Thunderbird, Adobe Acrobat DC, Skim and 
Texshop. The latter three were essentially identical and clear but that 
from Thunderbird was fuzzy and not as sharp as the others.

Best Wishes

Keith McKay

On 09/10/2022 16:33, Leah Neukirchen via ntg-context wrote:
> Hi,
>
> last week we had a long thread about non-printing PDF on this list and
> together with Hans I tracked down the issue and we found a fix.
> Since it changes some details of how PDFs are generated by LMTX, we'd
> like to test this change first on a wide range of software and
> printers.
>
> So please: Try to preview and then try to print the attached PDF;
> and report back if either preview or printout does not look like
> the attached reference PNG image (i.e. something is missing,
> the fonts look different, or have wrong relative size.)
>
> If you use other PDF tools in your workflow, please also check they
> continue to work as before (and just as well as with MKIV-generated PDFs).
>
>
> Thank you very much,
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
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___________________________________________________________________________________

Re: Help test a LMTX bug fix: tweaks in PDF generation

[Henning Hraban Ramm via ntg-context]

Am 10.10.22 um 10:50 schrieb Keith McKay via ntg-context:
> Hi,
> 
> I printed the file from my Apple mac mini M1 wirelessly to my HP Color 
> LaserJet MFP M283fdw from Thunderbird, Adobe Acrobat DC, Skim and 
> Texshop. The latter three were essentially identical and clear but that 
> from Thunderbird was fuzzy and not as sharp as the others.

The latter is because Thunderbird uses pdf.js, and that prints PDFs as 
images (rasterized in a low resolution), as Leah confirmed my guess.

Hraban

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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Willi Egger via ntg-context]

I printed the file with a HP Officejet 7740 through Wifi from a MacBook Air (old form 2013). - The PDF-reader is Skim.  ConTeXt Version 2022.09.11 20:44 — There is a perfect print. 

Willi

> On 10 Oct 2022, at 11:24, Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl> wrote:
> 
> Am 10.10.22 um 10:50 schrieb Keith McKay via ntg-context:
>> Hi,
>> I printed the file from my Apple mac mini M1 wirelessly to my HP Color LaserJet MFP M283fdw from Thunderbird, Adobe Acrobat DC, Skim and Texshop. The latter three were essentially identical and clear but that from Thunderbird was fuzzy and not as sharp as the others.
> 
> The latter is because Thunderbird uses pdf.js, and that prints PDFs as images (rasterized in a low resolution), as Leah confirmed my guess.
> 
> Hraban
> 
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
> ___________________________________________________________________________________

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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Rik Kabel via ntg-context]

Win 11 64 Intel, Sumatra PDF 3.4.6 to Brother MFC-L2740DW looks good.

Win 11 64 Intel, Sumatra PDF 3.4.6 to HP LJPro M254dw looks good.

Printing via Firefox, as others have noted, is fuzzy, but nothing is 
missing.

-- 
Rik


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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Pablo Rodriguez via ntg-context]

On 10/9/22 17:33, Leah Neukirchen via ntg-context wrote:
> [...]
> So please: Try to preview and then try to print the attached PDF;
> and report back if either preview or printout does not look like
> the attached reference PNG image (i.e. something is missing,
> the fonts look different, or have wrong relative size.)

Hi Leah,

I used Acrobat DC, SumatraPDF and Firefox in Windows and all programs
displayed and printed your document fine (Canon imageRUNNER ADVANCE).

I had no issues before printing LMTX-generated documents.

Many thanks for your work fixing the issues (wrong font display and
printing with some printers),

Pablo

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Re: Help test a LMTX bug fix: tweaks in PDF generation

[Gerion Entrup via ntg-context]

Am Sonntag, 9. Oktober 2022, 17:33:09 CEST schrieb Leah Neukirchen via ntg-context:
> So please: Try to preview and then try to print the attached PDF;
> and report back if either preview or printout does not look like
> the attached reference PNG image (i.e. something is missing,
> the fonts look different, or have wrong relative size.)

Okular, MuPDF and pdf.js (Firefox) on Linux look fine.
Gimp and Krita also look fine (but I think they are both using poppler).
LibreOffice Draw does not (font sizes are wrong). However, this is not directly a PDF viewer, so I'm pretty sure it can be ignored.

Best,
Gerion




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