Barcode graphics are emailed by GS1 as .eps files.
This is a vector-based format to ensure any resizing of the graphic stays proportional.
How do I import an EPS file into Adobe Illustrator?
Choose "File" > "Place" from the top menu bar and find your EPS file in the directory.
If you select "Link", Illustrator will create a link to the EPS file, and if you deselect it, the file will be embedded in the project.
When you're happy with the settings, click "Place".
If you select "Link", Illustrator will create a link to the EPS file, and if you deselect it, the file will be embedded in the project.
When you're happy with the settings, click "Place".
How do I resize the graphic in Adobe Illustrator?
Select the whole barcode.
Right Click > Transform > Scale Options >
Scale Stroke & Effects [tick the box].