Convert jp2k to pdf Online: jp2k2pdf

You can use Tom's Editor to easily convert images from
JPEG 2000 .JP2K to Portable Document Format .PDF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

JP2K

JPEG 2000 is an image format with extension JP2K.

PDF

Adobe PDF format is the most popular document format. Overcomplicated. Offers compression.