Maybe you’re wondering if you can convert a Powerpoint presentation into flash so you can play it in any kind of browser or uploading it to YouTube. iSpring is maybe something you’re looking for. Of course there are more other programs available to convert Powerpoint into Flash, only they don’t have always the same features and some programs includes spyware or other malicious software such as toolbars, this mostly happens with free software.
With iSpring you have to specify a valid email address, so they can make use of it and send advertisements to you. Read more »
With Pearl Mountain Image Converter you can convert images to other formats, change formats, rotate, crop, add watermarks, apply effects and add borders. This program makes it possible to do batch converting, so you can convert thousands of photos at once. 
It may happen that you have downloaded a CD and you think that it is a mp3 file, but seems like it’s a .flac file. An mp3 player can not read .flac files, but this doesnt mean you have to throw the file away. 
There are many video converters available, some of them are for free, most of those programs have the same functions. Nowadays, it is easy to convert videos in different formats, the programs can convert most common and popular video files, which makes it easy to convert from any kind of format into AVI, WMV or MP3. Also Freemake Video Converter can convert into different formats. 
With the free Adobe Reader, you can read all PDF files, but you can not read PDF’s with for example from Word. Acrobat reader will not allow to convert word or other files. However, there is a reliable and free tool which you can make PDF files.