Hi, I am doing my exam in may but I have started the process for documents too. Basically you have to print copies of your documents then legalise them with an apostille company, I asked and Plovdiv allows bundles so you can get all of your documents under one apostille (this is quick), you need to legalise this too? Then you translate this to bulgarian but itll be cheaper to go to Bulgaria and translate it and while you're there its much much cheaper to take the photos there (4x5cm) I got 12 pics for 10 LV (£4.32) Then when its translated you can do the grade conversion to the bulgarian grades. They might also want to see the original documents but Im not sure so bring both the copies with the apostille and the originals.
Out of curiosity, is the exam hard? Im so scared haha. If you have any tips for me, I'll be very grateful. Good luck, the process is lengthy!! Start ASAP because the equivalency will take much longer if you aren't early)