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Tim van der Meij 2019-03-08 00:06:46 +01:00
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Debugging-PDF.js.md

@ -34,7 +34,7 @@ The font inspector allows you to view what fonts are used within page. It also a
The stepper tool makes it easy for you to step through the drawing commands one at a time and hopefully find where a possible issue is coming from. It is also useful for learning how a PDF document is structured and the order of its operations. To walk through the drawing commands you must add a break point, refresh the page and then use the keys `s` to step one command at a time or `c` to continue until the next breakpoint (line that is checked).
## PDF Object Browser
Inspect the internal object structure and view raw values of a PDF document using http://brendandahl.github.io/pdf.js.utils/browser.
Inspect the internal object structure and view raw values of a PDF document using https://brendandahl.github.io/pdf.js.utils/browser.
## Debugging Font Issues
To get a problematic font out of a PDF document, download it first using the font inspector mentioned above.
@ -69,5 +69,5 @@ The Adobe Font Development Kit includes the above `ttx` program and several othe
`tx` can also be used to dump information from the font, see `tx -dump -h` for more information.
**Other Font Tools**
* [FontForge](http://fontforge.sourceforge.net/)
* [Microsoft Font Validator](http://www.microsoft.com/typography/FontValidator.mspx)
* [FontForge](https://fontforge.github.io)
* [Microsoft Font Validator](https://github.com/Microsoft/Font-Validator)