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 2026-06-12 · 5 min read
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.
- 2
Use focused layouts
Hide 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
If a file contains many unrelated sheets, smaller PDFs can be easier to handle.
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.