Werner: This is the one that I think will help the most (taken from the Fonts out of Context manual, pp 147 - 148 "If you want to use Lucida, all you have to do when you have bought the fonts, is to put the OpenType files in a place where they can be found, for instance: tex/texmf-fonts/fonts/data/lucida Of course you need to run MTXRUN --GENERATE afterwards so that the files can be found. On 2023-04-25 12:34, lynx--- via ntg-context wrote:

Hello, Werner: Have you tried some diagnostic tests, such as trying to get the PDF output via DVIPS? I suspect that you are, in fact, more knowledgeable and experience with ConTeXt than I am, but for what it is worth you may want to look at:

* \setupoutput[dvips,acrobat] (SEE: _Context-The Manual_ (Hans Hagen; English, page 24)) * \showbodyfont[Options] (SEE: _Not-so-short Intro to ConTeXt (_J. Ataz-Lopez;English, page 114)) * $ MTXRUN (mtxrun is the _ConTeXt TDS Runner Tool_) command from a terminal window it has has a large number of options for finding the fonts installed, and for querying their characteristics (SEE: _Fonts out of ConTeXt _(Hans Hagen, pg 52 and ff))

Em

On 2023-04-25 08:50, Werner Schmidt via ntg-context wrote: Hi conTeXt folks,

may I ask again. How could I debug the font typesetting of PDF files with conTeXt?

Any help is highly appreciated.

Best Werner

On April 21, 2023 1:29:18 PM UTC, Werner Schmidt via ntg-context wrote: Hi all,

I'd like to use the commercial Adobe Kepler typeface (Kepler Std - version 2.020) in conTeXt (v2023-04-15) as text (serif) font. Although the font files are loaded correctly (see log below), the generated PDF is unreadable (see attached image).

Notes: - Only serif font (keplerstd-light.otf) is not working. It's not embedded in the generated PDF. - italics and bold fonts are embedded and are rendered well - Can't provide font files because Kepler is a commercial typeface

Do you have any ideas how to debug this issue?

Thanks Werner

log file: mkiv lua stats > loaded fonts: 10 files: fontawesome6freesolid900.otf, frutigernextpro-bold.otf, frutigernextpro-regular.otf, iosevka-term-ss09-light.ttf, keplerstd-light.otf, keplerstd-lightcapt.otf, keplerstd-lightit.otf, keplerstd-semibold.otf, latinmodern-math.otf, lmroman10-regular.otf mkiv lua stats > font engine: otf 3.133, afm 1.513, tfm 1.000, 30 instances, 18 shared in backend, 3 common vectors, 15 common hashes, load time 0.449 seconds Example:

This text can't be read in PDF.par {it However, italics are working.}par {bold Also Bold and bfem BoldItalics!}par input{zapf} ___________________________________________________________________________________ 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 ___________________________________________________________________________________

___________________________________________________________________________________ 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 ___________________________________________________________________________________

Hi all, thanks for your ideas! Could figure out the following: - font files are found in the correct path and cached & loaded properly (no second copies, no name clashes) - issue occurs under Linux as well as Windows - issue is related only to some particular font files of the font family (not all) On April 25, 2023 9:21:57 PM UTC, Bruce Horrocks via ntg-context wrote:

Another check you can do is to run

$ mtxrun --script font --list --name '--pattern=*kepler*'

and see if the file for keplerstd-light is the one you are expecting and not a second copy somewhere that is upsetting things.

...

On 25 Apr 2023, at 21:40, lynx--- via ntg-context wrote:

Werner: This is the one that I think will help the most (taken from the Fonts out of Context manual, pp 147 - 148 "If you want to use Lucida, all you have to do when you have bought the fonts, is to put the OpenType files in a place where they can be found, for instance:

tex/texmf-fonts/fonts/data/lucida

Of course you need to run mtxrun --generate afterwards so that the files can be found.

On 2023-04-25 12:34, lynx--- via ntg-context wrote:

...

Hello, Werner: Have you tried some diagnostic tests, such as trying to get the PDF output via DVIPS? I suspect that you are, in fact, more knowledgeable and experience with ConTeXt than I am, but for what it is worth you may want to look at: • \setupoutput[dvips,acrobat] (see: Context-The Manual (Hans Hagen; English, page 24)) • \showbodyfont[Options] (see: Not-so-short Intro to ConTeXt (J. Ataz-Lopez;English, page 114)) • $ mtxrun (mtxrun is the ConTeXt TDS Runner Tool) command from a terminal window it has has a large number of options for finding the fonts installed, and for querying their characteristics (see: Fonts out of ConTeXt (Hans Hagen, pg 52 and ff)) Em

On 2023-04-25 08:50, Werner Schmidt via ntg-context wrote: Hi conTeXt folks,

may I ask again. How could I debug the font typesetting of PDF files with conTeXt?

Any help is highly appreciated.

Best Werner

On April 21, 2023 1:29:18 PM UTC, Werner Schmidt via ntg-context wrote: Hi all,

I'd like to use the commercial Adobe Kepler typeface (Kepler Std - version 2.020) in conTeXt (v2023-04-15) as text (serif) font. Although the font files are loaded correctly (see log below), the generated PDF is unreadable (see attached image).

Notes: - Only serif font (keplerstd-light.otf) is not working. It's not embedded in the generated PDF. - italics and bold fonts are embedded and are rendered well - Can't provide font files because Kepler is a commercial typeface

Do you have any ideas how to debug this issue?

Thanks Werner

log file: mkiv lua stats > loaded fonts: 10 files: fontawesome6freesolid900.otf, frutigernextpro-bold.otf, frutigernextpro-regular.otf, iosevka-term-ss09-light.ttf, keplerstd-light.otf, keplerstd-lightcapt.otf, keplerstd-lightit.otf, keplerstd-semibold.otf, latinmodern-math.otf, lmroman10-regular.otf mkiv lua stats > font engine: otf 3.133, afm 1.513, tfm 1.000, 30 instances, 18 shared in backend, 3 common vectors, 15 common hashes, load time 0.449 seconds Example:

This text can't be read in PDF.par {it However, italics are working.}par {bold Also Bold and bfem BoldItalics!}par input{zapf}

...

— Bruce Horrocks Hampshire, UK

___________________________________________________________________________________ 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 ___________________________________________________________________________________