There are two different formats you can download. The first is a PDF file, which contains an entire company's worth of banners. These can be printed and then painted in the appropriate colours. You will need a PDF viewer to download these.
The second format is a Zip file, which contains a selection of standards in Windows Bitmap format. These can be opened in your paint program and coloured however you want before being printed.

I have tried to make the banners fairly generic, so that they will work for the widest range of Chapters. As I have time, I'll look at expanding out to include a wider variety of designs. I'm not at all interested in trying to muscle in on Games Workshop's Intellectual Property, and so this page will never contain specific Chapter standards using GW Trademarks. Instead, I'll look at creating designs with similar themes, or using non-trademarked symbols, so that they look close enough without violating IP.

Includes enough banners to create an entire Battle Company, including characters and three Dreadnoughts.

Similar to the Battle Company Banners, but without the border. This page includes Character banners, 5 Tactical, 2 Veteran, 1 Assault, 2 Devastator and 3 Dreadnought banners.

Includes enough banners to create an entire Veteram Company, including Terminator Characters.

Contains an assortment of banners with basic heraldic designs replacing the usual Codex squad markings. Includes 12 Power Armour and 3 Dreadnought banners.

Includes banners for each squad type and character.

Includes 14 banners in various heraldic designs rather than the usual Codex squad markings.

Includes banners for each squad type and character.

Contains a generic Dreadnought banner.

Contains several blank Company Banners to which you just need to add a Chapter Badge.

Contains Company Banners bearing squad-type symbols.