nextcloud / nextcloud/files_pdfviewer
PDF viewer sometimes struggles with gradients
Nobody has claimed this yet.
- Dominant language
- JavaScript
- Stars
- 108
- Forks
- 61
- Avg merge
- 2d 9h
- Merged PRs (30d)
- 29
Description
Steps to reproduce
- Open a PDF with a gradient in it
Expected behaviour
Actual behaviour
Server configuration
Web server: Nginx (openresty)
Database: MySQL
PHP version: 8.3
Nextcloud version: 30.0.10 (Hub 9)
List of activated apps
Enabled: - activity: 3.0.0 - admin_audit: 1.20.0 - bruteforcesettings: 3.0.0 - calendar: 5.3.4 - circles: 30.0.0 - cloud_federation_api: 1.13.0 - comments: 1.20.1 - contacts: 7.1.4 - contactsinteraction: 1.11.0 - dashboard: 7.10.0 - dav: 1.31.1 - duplicatefinder: 1.7.3 - encryption: 2.18.0 - end_to_end_encryption: 1.16.2 - epubviewer: 1.8.0 - external: 5.5.2 - externalportal: 1.3.1 - federatedfilesharing: 1.20.0 - federation: 1.20.0 - files: 2.2.0 - files_accesscontrol: 1.20.1 - files_automatedtagging: 1.20.0 - files_downloadlimit: 3.0.0 - files_external: 1.22.0 - files_pdfviewer: 3.0.0 - files_reminders: 1.3.0 - files_sharing: 1.22.0 - files_trashbin: 1.20.1 - files_versions: 1.23.0 - firstrunwizard: 3.0.0 - integration_openstreetmap: 2.1.0 - logreader: 3.0.0 - lookup_server_connector: 1.18.0 - maps: 1.5.0 - music: 2.2.0 - news: 26.0.2 - nextcloud_announcements: 2.0.0 - nextframe: 0.0.7 - notes: 4.12.1 - notifications: 3.0.0 - notify_push: 1.0.0 - oauth2: 1.18.1 - password_policy: 2.0.0 - photos: 3.0.2 - previewgenerator: 5.8.0 - pride_flags: 1.1.2 - privacy: 2.0.0 - provisioning_api: 1.20.0 - recommendations: 3.0.0 - related_resources: 1.5.0 - richdocuments: 8.5.7 - riotchat: 0.19.0 - serverinfo: 2.0.0 - settings: 1.13.0 - sharebymail: 1.20.0 - side_menu: 4.1.1 - socialsharing_email: 3.3.0 - socialsharing_telegram: 3.3.0 - spreed: 20.1.8 - support: 2.0.0 - systemtags: 1.20.0 - text: 4.1.0 - theming: 2.6.0 - theming_customcss: 1.18.0 - twofactor_backupcodes: 1.19.0 - twofactor_email: 2.8.0 - twofactor_nextcloud_notification: 4.0.0 - updatenotification: 1.20.0 - uppush: 2.3.0 - user_status: 1.10.0 - viewer: 3.0.0 - weather_status: 1.10.0 - webhook_listeners: 1.1.0-dev - workflow_ocr: 1.30.1 - workflowengine: 2.12.0 Disabled: - app_api: 4.0.6 (installed 4.0.6) - documentserver_community: 0.2.0 (installed 0.2.0) - drawio: 3.0.9 (installed 3.0.9) - extract: 1.3.6 (installed 1.3.6) - mail: 5.1.6 (installed 5.1.6) - onlyoffice: 9.9.0 (installed 9.9.0) - survey_client: 2.0.0 (installed 2.0.0) - suspicious_login: 8.0.0 - twofactor_totp: 12.0.0-dev - user_ldap: 1.21.0Nextcloud configuration
If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder
Unable to run due to limited occ access from Hetzner
Browser
Browser name: Tested on: Firefox (Zen)/Chromium (Arc)/Apple Safari
Browser version: Arc v 1.101.0 (Chromium 138.0.7204.50), Zen v.1.13.2b (Firefox 139.0.4), Safari v.18.5
Operating system: Tested on MacOS Sequoia 15.5 (aarch64) and NixOS 25.05 (amd64)
More Details
a) Console log
b) The network log
c) Offending PDF
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue in the PDF viewer with the linked offending PDF across the listed browsers, then review the linked console and network logs. Done means gradients render correctly and consistently in the viewer without the reported visual degradation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100