Hi! I've been asked to make a print catalogue for a collection of brooches. I've taken the pics and saved them for the web thinking that I was only going to be using them for the website.... Do I need to reshoot and use high resolution pictures??? The file size would be around 8kb (4 kb for thumbnails 11-15kb for full size images) The images will be not be blown up large on the print... they will be aprx 16 to a page.
If you try and blow those up they will look terrible. You are going to need to reshoot them, I am sorry to say.
For web you have them in 96 DPI the most, and for print you need them at least at 300 DPI, and for better quality at 600 DPI.
300 DPI is the minimum attribute to have them printed pretty clearly. You don't necessarily need to reshoot your photographs.. there was a program that enlarged images clearly somewhere but I can't find it anymore..
There no program who can enlarge that much so you can print at good quality. Basically, any enlargment is done based on the existing pixels, thus the quality will suffer. For instance, no stock site will accept enlarged photos.
As mentioned above, its a re-shoot or find the original shots before they were downsized. You'll need 300dpi images or 400dpi images for top end quality. I'm not sure why ppl in this forum suggest 600dpi as its beyond what print can handle and would be downsized to max 400dpi by the RIP. The only reason for saving at such a high resolution would be if the artwork was pro'd down. You could possibly get away with 200dpi considering they are being used small but with your current image size I wouldn't recommend resampling these images.