OpenOffice is not a file converter, but you can use it to add a JPG to a document and then export that document as a PDF file. Although it can't open PDF files, OpenOffice can save valid PDF files ...

You can convert a JFIF file to JPG, though the two formats are nearly identical, and most software will open a JFIF file as a JPG. On a Mac, you need to rename the JFIF file extensions to JPG and then ...

If you’re building an app or site that stores, manipulates or serves a lot of images, you’ll want to consider implementing Google’s new image compression algorithm, which promises to reduce JPEG file ...