The answer is simple, poster putty. I use a nail and hook to hang the picture or painting like any regular piece of art, but then I place a 1cm (1/2 inch) sized piece of poster putty on each lower corner.
Typically, artist signatures are placed at the bottom of a work, in the right or left-hand corner, and between a couple of centimetres up from the bottom edge, to a couple of inches.
The most common way to label closed edition prints is to put the edition number on the bottom left, and the artist's signature on the bottom right. The artist can also write the name of the work in the middle of the bottom margin.
Your label should include: Artist's name. Nationality, birth year (Optional. Title of the artwork (in bold or italic), year created. Medium used to create (ex: crayon on paper) Brief description (This is where you can include any information about the artist, why they created the piece, how they created the piece, etc.)
You can use a pencil to sign the back of your canvas (or whatever surface you are using), along with the title. If you have a website, you could also write this on the back edge, plus add a business card and/or documents of authentication.
Write your name as many times as possible. Write it fast. Try different ways to shape different letters. Exaggerate it as much as possible. Eventually something will stick and boom, you have a signature.
Art buyers and collectors very much prefer work to be signed. They are investing in you and your signature is your endorsement of the work. Without your signature, the work is likely to be seen as of less value and can be mistaken as a reproduction. Don't be shy, but do be discreet.
Establishing provenance can be done in a variety of ways, including: A signed certificate or statement of authenticity from a respected authority or expert on the artist. An original gallery sales receipt or receipt directly from the artist. An appraisal from a recognized authority or expert on the artist.
We are often asked the question, are signed prints worth anything? And the answer is usually yes because the presence of an artist's signature can significantly impact a print's market value and auction performance. Signed prints have a special appeal to collectors, providing a tangible connection to the artist.