I have a 50+ high quality images in PDF format that need captions. I have tried inserting them as objects into MS Word, but there is a significant loss of quality/resolution when I do this. The only other option I've figured out is to write a caption in Word, convert it to PDF, then open both the image and caption files with Photoshop and overlay the two PDF files. Unfortunately, the PDF files are so big this is time consuming...and will easily take 5-7 minutes per figure. And I'd prefer not to spend an entire day doing this with 50+ images if avoidable. Any suggestions on an easier way of doing this? I do have access to a Linux machine if that would be any help.