PDFSnap › Brightness & Contrast
Adjust brightness, contrast and colour, free
Brighten a dark photo, add punch to a flat one, or change colours with four simple sliders.
Need several steps at once? Just type what you want →How to use Brightness & Contrast
- Add your imagesSelect one or more photos.
- Move the slidersAdjust brightness, contrast, saturation and hue shift to taste.
- Apply and downloadPress “Process Now” and save the adjusted images.
Why use PDFSnap
- Four adjustments in one tool.
- Apply the same edit to a whole batch for a consistent look.
- Private by design: your files are processed in your browser and are not uploaded to a server.
- Free, with no signup and no watermark on the result.
Frequently asked questions
What does hue shift do?
It rotates all colours around the colour wheel, which changes the overall colour tone of the image.
Can I undo the changes?
Your original is untouched. Change the sliders and run it again.
Is Brightness & Contrast really free?
Yes. There is no signup, no watermark and no paid plan. The site is supported by ads.
Is my data sent to a server?
No. Your file is processed by code running in your browser. The page only downloads the open-source libraries it needs (for OCR, also the language data), never your file.