XnResize

XnResize is a quick, powerful, and free cross-platform image resizer. Nowadays, digital cameras can capture images with great resolution. It is acceptable if you wish to see or print them. When it comes to sharing them with friends or coworkers, it's best to use an image resizer: it will take less time to post to social media and take up less space on smartphones while still allowing everyone to appreciate your images. 

XnResize can help you do that by lowering the resolution and converting your photographs to more size-efficient formats. All commonly used image and graphics formats are supported (JPEG, TIFF, PNG, GIF, WEBP, PSD, JPEG2000, OpenEXR, camera RAW, HEIC, PDF, DNG, CR2). 

It's the ideal tool for resizing many photographs at once! Add several files or a complete folder of photos to quickly resize them.

• Adjust the image height and width. 
• Apply predetermined sizes. 
• Drag & drop photos, or add a folder. 
• Adjust incorrect image orientation. 
• Select the output filename. 
• EXIF, IPTC, and XMP metadata support

XnResize allows you to reduce photo size without sacrificing quality. It's crucial to understand that scaling modifies pixel data. When a picture is decreased in size, extra pixels are eliminated or subsampling is used. To enlarge a picture, an image resizer must add new pixels depending on the original pixels, which can result in fuzzy results. So it's best to take a photo with the maximum resolution possible before downsizing it. 

XnResize is available as FREEWARE (no adware or spyware) for personal, educational, and business usage.