Less-technical notes.
.AI files
These are Adobe Illustrator files. These, you probably won’t be able to open unless you have professional design software. But if you ever work with another designer or sign maker, these are the files that they will want. These files can be enlarged to any size and still retain the highest quality.
.PDF files
These are used for printing shirts, posters, small signs, or anything that might get printed.
.JPG files
These files are used on screen. The HIRES are the high resolution versions which could be used to make flyers. The WEB versions are lower resolution, to be used on the web.
.PNG files
These files are for web use and/or email signatures. Unlike JPG files, PNG files can have transparency. Your web developer will use these. Some companies print from PNG files, but better to send PDF files.
.SVG files
These are vector files that can be used by skilled web designers.
Designer files
There’s a folder called “DESIGNER FILES”. These are Adobe Photoshop and/or Illustrator files. They require design software to open, but they are appreciated by sign makers or other designers who you may work with in the future.
1x 3x 4x folders
These folders are labeled with the size of the logo. This is usually only necessary for JPG and PNG files. 1x are a normal, thumbnail size, and 4x is four times the size.