Watermark Image
Local Processing (Offline Capable)Add text watermarks to images — center, corners, or tiled — with adjustable opacity (5–100%) and font size (white text with dark outline). Runs locally in your browser — your file is never uploaded.
How this tool works (no sign-up needed)
- Upload your file above. Each tool shows whether it runs Local (in your browser) or Cloud (encrypted servers).
- Adjust options, then click the Run / Convert / Process button.
- Wait for progress, then download the result. Use Next tools to continue.
If buttons are not visible, enable JavaScript — the interactive workspace loads in your browser.
Supports image/*,.webp,.gif,.bmp,.avif,.svg,.tif,.tiff
What is it?Watermark Image is a PDFLean image tool: Add a text watermark to images with center, corners, or tiled placement and adjustable opacity and font size, running locally in your browser without uploading files.
TL;DR: Add a text watermark to images with center, corners, or tiled placement and adjustable opacity and font size. Everything runs locally in your browser — your file is never uploaded and is cleared upon closing the page.
About this tool
Add a text watermark to images (center, corners, or tiled) with adjustable opacity and font size (white text with dark outline). Everything runs locally in your browser's memory — free, no account required, and files never leave your device. Output format automatically matches the source image.
How to use
Upload an image
Enter the watermark text and adjust position, opacity, and font size
Click "Process" and download the result
FAQ
Will my file be uploaded?
No. Everything runs locally in your browser — your file is never uploaded and is cleared upon closing the page.
What formats are supported?
Supports JPG / JPEG / PNG / WEBP and more. The output format automatically matches the source image.
Will it lose image quality?
The output is re-encoded in the original image format with visual quality essentially preserved. For completely lossless output, using PNG images is recommended.
Can I process multiple files in bulk?
A single tool page handles one task at a time; for bulk work use the Batch Processing workflow and add this tool as a step to run a whole set at once.
Is the processed file still editable?
The result is a new watermarked image file; the original image remains unchanged.