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dompdf export broken #3748

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opened 2026-02-05 07:19:26 +03:00 by OVERLORD · 4 comments
OVERLORD commented 2026-02-05 07:19:26 +03:00
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Originally created by @eoli3n on GitHub (Apr 17, 2023).

Describe the Bug

When I try to export a pdf page, I get "An unknown error occurred".

In log, i get that line

[2023-04-17 10:37:15] production.ERROR: Call to a member function get_cellmap() on null {"userId":4,"exception":"[ob
ject] (Error(code: 0): Call to a member function get_cellmap() on null at /var/www/bookstack/vendor/dompdf/dompdf/sr
c/FrameReflower/TableCell.php:40)

Steps to Reproduce

  1. Go to a book/page
  2. Export / pdf
  3. Get the error

Expected Behaviour

Pdf to be rendered

Screenshots or Additional Context

No response

Browser Details

No response

Exact BookStack Version

v23.02.1 and v23.02.3

PHP Version

8.2

Hosting Environment

Debian 11
Nginx
Mariadb

Originally created by @eoli3n on GitHub (Apr 17, 2023). ### Describe the Bug When I try to export a pdf page, I get "An unknown error occurred". In log, i get that line ``` [2023-04-17 10:37:15] production.ERROR: Call to a member function get_cellmap() on null {"userId":4,"exception":"[ob ject] (Error(code: 0): Call to a member function get_cellmap() on null at /var/www/bookstack/vendor/dompdf/dompdf/sr c/FrameReflower/TableCell.php:40) ``` ### Steps to Reproduce 1. Go to a book/page 2. Export / pdf 3. Get the error ### Expected Behaviour Pdf to be rendered ### Screenshots or Additional Context _No response_ ### Browser Details _No response_ ### Exact BookStack Version v23.02.1 and v23.02.3 ### PHP Version 8.2 ### Hosting Environment Debian 11 Nginx Mariadb
OVERLORD added the 🐛 Bug label 2026-02-05 07:19:26 +03:00
OVERLORD commented 2026-02-05 07:19:33 +03:00
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@ssddanbrown commented on GitHub (Apr 17, 2023):

This is very dependant on content, so please can you share a minimum sample of the page HTML/markdown content that's triggering this error?

You can get the HTML content of a page via one of the right-most buttons when in the WYSIWYG editor.

@ssddanbrown commented on GitHub (Apr 17, 2023): This is very dependant on content, so please can you share a minimum sample of the page HTML/markdown content that's triggering this error? You can get the HTML content of a page via one of the right-most buttons when in the WYSIWYG editor.
OVERLORD commented 2026-02-05 07:19:38 +03:00
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@eoli3n commented on GitHub (Apr 20, 2023):

Ironically, the problem is about my comparative table about wiki solution choice

This ->

  dokuwiki wiki.js xwiki bookstack
Libre et gratuit oui oui oui oui
Hébergé sur site oui oui oui oui
Éditeur WYSIWYG plugin ++ + ++
Authentification CAS-AD AD CAS-AD ?-AD ?-AD
Structure hiérarchique des pages - + + ++
ACL par agent/groupe oui ? oui oui oui
Éditeur de tableau avancé plugin ++ + ++
Mention des utilisateurs @jk non ? ticket en cours ticket en cours
Gestionnaire de tâches plugin ? plugin non
Historisation des modifications oui oui oui oui
Format de saisie du contenu spécifique md wysiwyg asciidoc html ? md wysiwyg
Format de stockage du contenu txt bdd bdd bdd
Export du contenu pdf html odt md html pdf(impression) ? md html pdf txt
Fichiers attachés aux pages non ? ? oui
Brouillons ? ? ? oui
Diagrammes non UML flowcharts sequence ? flowcharts
Commentaires non oui ? oui
@eoli3n commented on GitHub (Apr 20, 2023): Ironically, the problem is about my comparative table about wiki solution choice This -> <!-- x-tinymce/html -->   | dokuwiki | wiki.js | xwiki | bookstack -- | -- | -- | -- | -- Libre et gratuit | oui | oui | oui | oui Hébergé sur site | oui | oui | oui | oui Éditeur WYSIWYG | plugin | ++ | + | ++ Authentification CAS-AD | AD | CAS-AD | ?-AD | ?-AD Structure hiérarchique des pages | - | + | + | ++ ACL par agent/groupe | oui ? | oui | oui | oui Éditeur de tableau avancé | plugin | ++ | + | ++ Mention des utilisateurs @jk | non | ? | ticket en cours | ticket en cours Gestionnaire de tâches | plugin | ? | plugin | non Historisation des modifications | oui | oui | oui | oui Format de saisie du contenu | spécifique | md wysiwyg asciidoc html | ? | md wysiwyg Format de stockage du contenu | txt | bdd | bdd | bdd Export du contenu | pdf html odt | md html pdf(impression) | ? | md html pdf txt Fichiers attachés aux pages | non | ? | ? | oui Brouillons | ? | ? | ? | oui Diagrammes | non | UML flowcharts sequence | ? | flowcharts Commentaires | non | oui | ? | oui
OVERLORD commented 2026-02-05 07:19:41 +03:00
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@eoli3n commented on GitHub (Apr 20, 2023):

for working exports, is there a possibility to manage zoom when exporting ? I want to export in a smaller font

@eoli3n commented on GitHub (Apr 20, 2023): for working exports, is there a possibility to manage zoom when exporting ? I want to export in a smaller font
OVERLORD commented 2026-02-05 07:19:43 +03:00
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@eoli3n commented on GitHub (Apr 20, 2023):

The table was a copied/pasted from a dokuwiki, I recreated it, which solved my issue.

@eoli3n commented on GitHub (Apr 20, 2023): The table was a copied/pasted from a dokuwiki, I recreated it, which solved my issue.
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