My company has ordered business card from multiple times and they always show up perfect, and quickly. They even called us once to let us know that there was a spelling error in the document we sent them to print from and wanted to get our permission to correct them.

There is a product that looks like a putty or gum. I think they call it mastic. It comes in a small plastic tube, & you pull out a wad of this stuff, break it into four smaller pieces, squash them flat, & put one at each corner of your poster, & stick it to the wall.

I have left posters up for years with this stuff, & was able to remove it later without harming the wall or the poster.

You'll probably find it in any hardware store, or Home Depot, or Staples.

i dont know um… if i find out ill tell u.