Error rendering some UTF8 characters on PDF export

[junlicn]

For Feature Requests

Desired Feature:

For Bug Reports

• BookStack Version (Found in settings, Please don't put 'latest'):
• PHP Version:
• MySQL Version:
  Ubuntu 16.04 Installation Script
  2018/2/27
  ubuntu default.

Expected Behavior

Current Behavior

Steps to Reproduce

after installation, login as admin, write chinese , then export from webpages.

[ssddanbrown]

@junlicn Thanks for reporting. Issue confirmed and marked to be fixed for next release.

[ssddanbrown]

Updating the title of this so mulitple issues of the same cause can be merged down into this one.

[ssddanbrown]

So I've had deeper dive into this. Unfortunately supporting all languages looks like it's going to be tricky and I don't really want to include many MB's of font files in the code.

As mentioned within #730 and #746, Using the WKHTML instead of the default DOMPDF to render PDF's will allow much easier support of fonts in addition to better rendering overall. Details of changing to WKHTML can be found in the docs here.

I have made a small tweak in b42b071 which should increase default support but I know it doesn't cover Japanese/Chinese characters.

[nekromoff]

Does not work.  i have installed wkhtmltopdf and added it via .env file / correct path and all I get is this:

[nekromoff]

Also, this bug applies to extended set of ASCII - e.g. Central European characters such as ľščťžýáíéúô
etc.

[nekromoff]

Based on this, it is just an issue of a selected font:
https://stackoverflow.com/questions/16384517/dompdf-character-encoding-utf-8

[nekromoff]

Basically, this fixes the bug for extended ASCII - European characters:
setting all fonts in
/vendor/dompdf/dompdf/lib/fonts/dompdf_font_family_cache.dist.php
to:

DejaVuSans
DejaVuSans-Bold

etc.

[ssddanbrown]

@nekromoff Yeah, WKHTML can be tricky to set up correctly.

In the latest update, Released yesterday, There have been some updates made to DOMPDF exports to increase support but there's a limit to how much we can support without including a large amounts of fonts.

[jasoncheng7115]

I think this should be the font setting problem, such as the default ubuntu font "DejaVuSans", which is not Chinese.