madankgit opened a new issue, #37992:
URL: https://github.com/apache/superset/issues/37992

   ### Bug description
   
   When exporting dashboards via Alerts & Reports to PDF, charts with multiple 
rows (3+) are frequently truncated at the bottom due to viewport and rendering 
limitations. Current behavior requires manual adjustments to viewport size, 
screenshot settings, or tiled screenshot configurations to capture full charts.
   
   <img width="490" height="390" alt="Image" 
src="https://github.com/user-attachments/assets/0771fea7-31b8-476d-9367-1fe1b627a4c5";
 />
   
   
   **Reference Tickets / PRs:**
   
   [#34561 – Tiled screenshots in Playwright 
reports](https://github.com/apache/superset/pull/34561)
    – Addresses blank or incomplete screenshots for large dashboards.
   
   [#29326 – Playwright dashboard screenshot blank 
issue](https://github.com/apache/superset/issues/29326)
    – Highlights Chromium rendering delays causing missing chart sections.
   
   
   **Request / Technical Requirements:**
   
   - Ensure complete chart capture in PDF exports, regardless of row count or 
dashboard height.
   
   - Automatically utilize tiled screenshots for dashboards exceeding viewport 
limits (height > 5000px or charts > 20) without manual intervention.
   
   - Maintain consistent layout, scaling, and readability across all charts in 
exported PDFs.
    
   - Support both Chrome and Firefox headless WebDrivers, ensuring proper 
Selenium / Playwright integration in Dockerized Superset environments.
    
   - Reduce dependency on manual overrides such as SCREENSHOT_VIEWPORT_HEIGHT 
or ALERT_REPORTS_MAX_CUSTOM_SCREENSHOT_WIDTH for multi-row dashboards.
   
   
   **Impact / Benefits:**
   
   - Eliminates truncated charts in PDF exports.
   - Removes need for manual screenshot or configuration tweaks. 
   - Improves reliability and completeness of Alerts & Reports.
   - Ensures consistent rendering across headless browsers and Docker 
deployments.
   
   ### Screenshots/recordings
   
   _No response_
   
   ### Superset version
   
   master / latest-dev
   
   ### Python version
   
   3.9
   
   ### Node version
   
   16
   
   ### Browser
   
   Chrome
   
   ### Additional context
   
   _No response_
   
   ### Checklist
   
   - [ ] I have searched Superset docs and Slack and didn't find a solution to 
my problem.
   - [ ] I have searched the GitHub issue tracker and didn't find a similar bug 
report.
   - [ ] I have checked Superset's logs for errors and if I found a relevant 
Python stacktrace, I included it here as text in the "additional context" 
section.


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