Q When I try to open a PDF file in an e-mail, Internet Explorer opens up, even though I have Adobe Reader software installed. Can I fix this?

Paul Hepworth, York

A Yes, you can. The file association (or link) between the Adobe PDF files on your PC and Windows has become corrupt. The easiest solution is to uninstall Adobe Reader software (go to Start, Control Panel, Add/Remove Programs), then download the latest version from tinyurl.com/6ip and reinstall it.

You could also try the free Foxit Reader software instead from tinyurl.com/h9wxd – this is a specific PDF tool for Windows that opens this type of file extremely quickly.

Q How can I change short films that I have taken on my digital camera from landscape to portrait format?

Ilse Weatherall, via e-mail

A Most people prefer to shoot video in landscape format, as the footage is better suited to the shape of a television screen or monitor. If you want it in portrait format – for example, to display the clip on a digital photo frame – try the free Video Flip and Rotate Windows program from tinyurl.com/yuaw4a.

Download and install this tool, specify which video file you wish to rotate, and the program will convert the clip as required.

The software works fast and, more important, doesn’t seem to enlarge the file size or degrade the image resolution too much.

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