Tool — Grayscale
Convert PDF to Grayscale
Remove all colour from a PDF. Each page is rendered and saved as grayscale. Great for printing.
ℹ️ Each page is rendered as an image and converted to grayscale. The output PDF will be image-based — text won't be selectable. For text-heavy PDFs, file size may increase.
Step 1 — Upload PDF
Drop PDF here or click to browse
Single PDF file
Step 2 — Quality
72 — Small file300 — High quality
Converting...0%
✓ Converted
⏱ File expires in 45s
How to Convert PDF to Grayscale Online — Free, Browser-Based
Strip all colour from a PDF and convert it to black and white — ideal for print-ready output, reducing ink cost, or producing professional monochrome documents. LovelyPDF renders each page using PDF.js and converts it to grayscale using canvas processing, all inside your browser. No upload, no account, no limits.
Step-by-Step Guide
- Upload your PDF by clicking or dragging it into the tool
- Preview the grayscale conversion on screen
- Click Download Grayscale PDF
Common Use Cases
- Preparing documents for black-and-white printing to save ink
- Converting colour reports to monochrome for archiving
- Producing print-ready PDFs for laser printer output
- Removing colour branding before sharing neutral documents
Frequently Asked Questions
Will text remain sharp after conversion?
Yes. Text and line art are rendered at high resolution and remain clear and readable.
Can I convert back to colour after?
No. Grayscale conversion removes colour permanently. Always keep your original.
Does it reduce file size?
Often yes — colour images take more data to encode than grayscale. Reduction depends on how image-heavy the document is.
Related tools: Compress PDF · PDF to Image · Edit PDF