iso paper size

[envy77]

could anybody explain what iso paper sizes mean, when i use the drop down menu  it only gives me iso options.

[sandytechy20 · Accepted solution]

@envy77

Thank you for visiting the HP Forums! A great place where you can find solutions for your issues with help from the community!

I understand that you want to know what ISO paper sizes mean.

The international paper size standard is ISO 216,  ISO paper sizes are all based on a single aspect ratio of square root of 2.

• A logical set of paper sizes that are defined by the ISO 216 standard.
• The largest size (A0) measures one square meter. The height/width ratio remains constant (1:1.41) for all sizes.
• By folding A0 paper in two along its shortest side you will get A1.
• Then fold the A1 size in two to get an A2 size paper,
• A-sizes are used to define the finished paper size in commercial printing: 
• A4 is for office documents,
• A5 is for notepads.
• A6 is for postcards.

I realize this is a lot of things to consider, but I hope it helps,

and if you feel I have answered your question and concerns,

please mark this post as a solution accepted.

Kudos would also be appreciated.