What is FastStone Photo Resizer?

A free Windows tool for batch resizing, converting, rotating, watermarking, and adding text to large groups of images at once, while preserving quality.

Can it add watermarks to multiple photos at once?

Yes. The Watermark feature applies your logo or text to an entire batch of photos simultaneously with adjustable position and transparency.

What image formats does it support?

JPEG, PNG, BMP, GIF, TIFF, PCX, JPEG2000, and more — with conversion between all supported formats.

Is FastStone Photo Resizer free?

Yes. It is completely free for all Windows versions.

Does resizing affect image quality?

The program gives you full control over compression and quality settings, allowing you to resize or convert without noticeable quality loss.

FastStone Photo Resizer: Free Image Format Converter and Watermarking Software 2026

28/03/2026

FastStone Photo Resizer — Free Batch Image Converter and Watermark Tool 2026

FastStone Photo Resizer is a powerful free image processing tool from FastStone Corporation (makers of FastStone Capture). It excels at batch operations — processing groups of photos simultaneously — with full quality control throughout.

Key Features

The Resize tab lets you adjust image width and height with multiple preset and custom options. The Rotate tab handles rotation and flipping. The Text tab adds customizable text overlays with font, size, and color control. The Watermark tab is the standout feature — it adds logo or text watermarks to entire batches of images at once, with adjustable positioning and transparency, making it ideal for photographers and content creators protecting their work.

The batch format conversion tool supports JPEG, PNG, BMP, GIF, TIFF, PCX, and JPEG2000, with bulk file renaming and sequential numbering also available. The program is completely free and works on all Windows versions without affecting image quality.

FAQs