What stays local
Your selected PDF is handled in this browser session. BQ PDF Tools does not add your document to the offline cache or upload it to an application server.
Analyze PDF tool
PDF Color Analyzer
Identify colour, grayscale, and mostly blank pages before printing or converting a PDF.
Choose PDF
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Drop a PDF file hereor select a file from this device · adaptive limit based on this device
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Choose a file to begin.
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Diagnostics include the tool, browser, file count, total size, and visible error—but never filenames or document contents.Your selected files and settings are still available.
Trust and output notes
Use this quick checklist before replacing an important PDF.
What this tool preserves
- Reports are generated locally as previewable text or CSV.
- The tool does not open extracted links or contact external services.
- The selected document is only read inside this browser.
What to check
Reports describe what the browser PDF parser can read. Scanned pages, flattened links, or hidden structures may not be fully detected.
Practical examples
Example 1
Check page sizes before printing.
Example 2
List links before publishing a guide.
Example 3
Audit fonts and colour pages before distribution.
How to pdf color analyzer
Step 1
Choose a PDF.
Step 2
Select fast or detailed sampling and the white threshold.
Step 3
Create the report and review colour classification and estimated coverage.
What this tool does
The analyzer renders small local previews, samples page pixels, estimates non-white coverage and colour-pixel share, then creates a CSV report. Results are estimates rather than press-calibrated measurements.
Privacy note: selected files are handled by JavaScript running on your device. The application does not intentionally transfer document contents to a BQ server. Browser extensions, managed-device policies, and the browser itself remain outside the site’s control.
Compatibility note: PDF is a complex format. Very large, encrypted, malformed, digitally signed, or unusually constructed files may not process correctly. Keep the original document until you have checked the result.
Frequently asked questions
Does this measure professional ink coverage?
No. It is a browser-based pixel estimate, not a calibrated CMYK prepress measurement.
Does the tool modify the PDF?
No. It only creates a separate CSV report.
Why can a page with one small logo be marked colour?
Any meaningful coloured pixels can classify a page as colour even when most of it is grayscale.
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