Yes, the images that you use need to be high resolution. Using high resolution photos ensures that the images on your cards and invitations will print clearly. Using low resolution photos will result in printed photos that look pixelated or blurry.
Here are some rough guidelines to follow. Please note that these are minimum resolution requirements. Your photos should be at least this resolution for the size indicated:
Size of Photo When Printed — Minimum Resolution Required
- 4×6 size photo — 690 x 460 pixels
- 5×7 size photo — 805 x 575 pixels
- 8×10 size photo — 1150 x 920 pixels