JPEGmini reduces the file size of digital camera JPEGs up to five times, all while while preserving the resolution and quality of original photos. EXIF data is also preserved.
The typical file size reduction depends on the resolution and quality of an original photo. For high-quality, high resolution digital images, file size will be reduced between 50%-80%.
JPEGminis are fully compatible with any browser, photo software or device that supports the standard JPEG format. JPEGmini supports standard JPEG files with a resolution of up to 50 megapixels. Currently, it does not support the RAW file format.
According to ICVT, the company that developed JPEGmini, there are several benefits to converting JPEGS to the format.
- Store more photos on your hard drive
- Store more photos on online albums, especially beneficial if you’re paying for photo hosting that has a maximum storage limit.
- Upload photos faster to the web
- Faster attaching and emailing full-quality photos
- Website owners can substantially reduce bandwidth and storage costs for online photos; upload and page load times are faster.
Edit JPEGs first, then apply JPEGmini
Dror Gill, Chief Technology Officer for ICVT, says that JPEGmini should be your final step after editing.
“When you edit a JPEG photo, in most cases the JPEG file is decoded, editing is performed on the raw pixels, and then the file is re-encoded into JPEG. Since JPEGmini performs optimal encoding (better than any image editor), it is recommended to edit the photo first, and then apply JPEGmini.”
It’s important to note that for the highest file size reduction, original images created by digital cameras should be used. Photos that have been edited or resized may result in lower reduction ratios.
Using the JPEGmini website
As of the writing, there are no desktop applications or plug-ins to recompress photos offline. Images must be uploaded to JPEGmini website. Use of the site is free and there is no limit on the number of photos that can be processed. Registration is not required to optimize single photos but you must register to make batch uploads. Registration at the site is very quick and easy.
A new album is created for each upload, whether it is a single image or a batch upload. Once images are uploaded to an album, additional time is required to process them. Depending on the speed of your internet connection, uploading large files can be slow.
JPGEmini.com only process JPEG images and is not intended to be a photo hosting site. Once an album is created you can not add additional photos to it. You can not open an album to view its contents. Instead, processed images can be downloaded to your desktop in a compressed folder, or sent to Flickr or Picasa web albums.
When an album is created, you receive an email with a link to download the processed images. The link expires in six days, and so does the album.