Troubleshooting
Slow PDF Rendering
Browser rendering can slow down on very large sheets, scanned PDFs, dense vector drawings, or pages with many visible markups.
Updated 2026-07-03 · 5 min read
On this page
Large drawings need stable browser resources and focused workspace layouts.
Improve rendering
- 1
Close unused tabs
Free browser memory before working on large drawing sets: close unused browser tabs and unused drawing tabs inside the workspace.
- 2
Use focused layouts
Switch to Drawing Focus and close sidebar panels you do not need while navigating complex pages.
- 3
Zoom intentionally
Avoid rapid zoom and pan changes while a large page is still loading.
- 4
Split large PDFs where practical
Use Extract Pages in the Thumbnails panel to break a huge set into smaller working files.
When to contact support
Send the browser, operating system, drawing size, page count, and whether the PDF is scanned or vector-based if rendering remains slow.
Related topics
Related product guides
These broader guides explain how this support workflow fits ContractorCounter's markup, measurement, takeoff, and export toolset.
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