Hey Zsolan, apologies I'm on UK time so didn't see this earlier. I have had a look at this and uploaded an A5 pdf (resized as per above suggestions) with no front/back cover (replaced by blank pages to keep the page count at 180 pages). You can find it here https://nameless-designer.itch.io/heroes-of-adventure-rules-compendium
Let me know if that works for you (and interested in seeing a picture of any printed copies.