PDF Color Editor
FreeAdjust colors and apply color correction to PDF documents
Drop a PDF or click to browse
Apply a colour filter to every page
About PDF Color Editor
Colors in a PDF can look off for all kinds of reasons, from a scan that came out too dull to a design that prints darker than it appears on screen. Correcting them after the fact is tricky when you no longer have the source artwork. This color editor lets you adjust the look of an existing PDF without rebuilding it.
Upload your document, apply the color adjustments you need, and download the corrected version. It works entirely in your browser, costs nothing to use, and never adds a watermark or asks you to sign up. Your file is processed only for the correction you requested, so the content stays private.
Common uses
- Brightening a faded scan so it reads more clearly
- Correcting colors that print too dark or washed out
- Adjusting a document's tone to match other files in a set
- Toning down overly saturated colors in a graphic-heavy PDF
How to use
- 1
Upload your file
Click the upload area or drag & drop your file. Supports APPLICATION/PDF. Up to 50 MB.
- 2
Click "Process — PDF Color Editor"
Click the process button. Your file is converted instantly on our secure servers.
- 3
Download your result
Preview and download your converted file. No watermarks, no quality loss, no expiry.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
Does this change both text and images?
Color adjustments apply to the page rendering as a whole, so they affect colored text, graphics, and embedded images together.
Can it fix a poorly scanned document?
It can improve tone and color balance, which often helps a dull scan, but it cannot recover detail that was never captured in the original scan.
Is the original file changed?
No, you download a new corrected copy. Your uploaded original is not altered on your device.
Can I use PDF Color Editor on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.