Convert bl3 to pdf Online: bl32pdf

You can use Tom's Editor to easily convert images from
DEGAS Elite block .BL3 to Portable Document Format .PDF.
Tom's Editor is a free, online image manipulation and converter program.

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BL3

DEGAS Elite block is an image format with extension BL3.

PDF

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