This is my first time visiting the thread and as I have come across the problems like you, so I may give you some advice. I agree that some PDF files are generated from Office file, most frequently word and PPT. If you want to recover or convert it back, an approach way is to use the specific application. As you want to recover your PPT slides for editing, you can use PDF to Powerpoint Converter or Adobe Acrobat. Actually PDF to Word also can help you as you can transfer the contents from word to Powerpoint easily. You can refer Zamzar.com Get the resource: www.zamzar. Sammy A Grande Fuga Download Dublado Rmvb here. com www. Six Sigma Kano Template For Cover on this page. anypdftools.com/pdf-to-powerpoint.html#201.