A few answers. On power DVD you can reset the size manually so it won't be squashed. Go into your opition and fool around with the sizes...
On the subject of yellowing of autographs, you will not have to worry about it if you do it right. I have vast experience on this subject and have had all the bad things happen and now know what to do.
1) Never use the cheap frames without mattes and make sure that the mattes are acid free, as well as the backing; the reason for matting is because you need air to flow between the photo and the glass, which will stop cracking. Also, if you're item touches the glass, if you have a migh mositure day, the photo could stick to the glass.
2) Every year (maybe twice a year), it might be good to remove the photo and check it as well as let it breathe for a few hours.
3) Never put things on the wall where strong light or any sunlight hits it. I have several Jerome Blake graphs ruined that way.
4) Your ink, unless really cheap along with cheap paper and handled too much, should be ok (even if pretty cheap) if you store it in acid free sheets in a dark place. It should last as long as you are alive. I have an orlando Bloom signed card and a George Lucas Screening Invite fade because I kept them out in INDIRECT sunlight.
5) Never store in a basement or attic due to hard temperature changes. If you have to, you should put them in plastic tupperware like containers (good ones with strong seals) and use silica packets inside. One or two should suffice depending how large the storage box it. One for shoe box size is fine. But if big trunk, use a few.
6) Hanging items on an outside wall that is not well insulated will cause problems. For example, the temperatures can change a lot which causes frames and glass to contract and expand. If it contracts, your photo, if touching the edge will contract too. Also, the frame could loosen and the glass could crack, causing harm to your item. However, this is rare as most people have well insulated homes or live in moderate areas. But say you live in a weird climate area; best to put your prized items on an inner wall.
It's all about moisture, hard light, over handling and acid free storage/display.
I hope this helps someone!