Auto-deleted
PDFs are removed after processing and download.
PDF grayscale
Convert PDF to grayscale online
Turn color PDFs into grayscale, high-contrast grayscale, or black & white. Convert every page or only the ones you choose — then download a new PDF.
Drop a PDF here
Drop anywhere, or choose an option below.
PDF
One PDF at a time50 MB max500 pagesPrivate processing
Files stay private while we process them, then they are deleted. Nothing is published unless you choose to share a result later.
Private processing
Your documents are never published or indexed.
Page-aware
Convert the whole PDF or only selected pages.
Stays responsive
Grayscale conversion runs privately in the background.
At a glance
Built for clean grayscale output
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How it works
Three steps. Clearer pages.
Step 1
Upload a PDF
Upload one PDF to preview every page.
Step 2
Choose grayscale
Pick standard, high contrast, or black & white.
Step 3
Convert & download
We create a new PDF — your original stays untouched.
PDF grayscale
Simple color conversion with page control
Standard grayscale
Soft gray conversion that keeps visual detail.
High contrast
Boost readability for scans and faded documents.
Black & white
Optional threshold mode for stark print-like pages.
Selective pages
Leave cover pages or color inserts unchanged.
Live preview
See grayscale on thumbnails before converting.
Validated output
Every result is checked before download.
Formats & limits
Supported files & options
Input PDF
Standard PDF files up to 50 MB.
Modes
Standard grayscale, high contrast, and black & white.
Output
One PDF named document-grayscale.pdf by default.
Page limit
Up to 500 pages per document.
Unchanged pages
Pages you exclude keep their original color and structure.
Privacy
Documents are processed privately and removed after download.
Questions
Before you upload
No. Grayscale keeps many shades of gray. Black & white uses a threshold to push tones toward pure black or white.
Yes. Choose selected pages, ranges, odd/even, first, last, or skip first/last.
Not always. Grayscale can reduce color data, but encoding and quality settings still affect size.
Your file is handled for this job only. Download the result, then we remove it after a short window.
PDF toolkit
Related PDF tools
Compress with the PDF Compressor, convert pages to images with PDF to JPG/PNG, or crop pages with the PDF Crop tool.