If there is Low Quality Pictures warming on picture, create proofs with PDF file and examine picture quality with 200% enlargement.
❶ Low Quality Picture warning
In order to get best printing quality, pictures are request to reach 300dpi. Photobook Designer will examine resolution of pictures which have been place on pages. If picture resolution is lower than 250dpi, Low Quality Picture warning is appeared. Then reduce the size of picture to match resolution requirement.
❷ Create proof
Output Format: Multi-Page PDF。
❸ Open PDf files
Open PDF file and review it with 200% enlargement.
Printing quality is similar to what you see on screen now.