You can just photograph them with a 5 Megapixel or larger camera on a stand as well. It might cause less damage than trying to cram them into a flatbed scanner. Don't use flash, but work in a room with very good overhead illumination and use a reference card for White/Color balance if needed. If you need to flatted the documents place them gently one at a time under a flat piece of glass and photograph through the glass. If they are fragile, that's where the camera comes in handy as by using a greater Depth of Field you can acheive focus for the entire document with out further compromising them.

Multiple copies of the storage (several posts about longevity of media here at PR and elsewhere), and save in a lossless format like TIFF.

Should you need the high resolution capabilities of a flatbed scan, be sure to work in a temperature controlled room (even a room that is just well Air Conditioned and that has not had lots of traffic for 24 hours) and make sure the documents have been in there with the scanner for 24-48 hours. That way everything is as durable from humidity & temperature standpoint as possible. Less/no condensation.

You can scan right into most editing programs (Adobe Products included). Just be sure to add lots of tags and comments to the files to know what each is for future reference.

More questions?

Welcome to Photgraphy Review as well!!