Imports github.com/seehuhn/epublatex/epub github.com/seehuhn/epublatex/latex/math github.com/seehuhn/epublatex/latex/render github.com/seehuhn/epublatex/latex/tikz github.com/seehuhn/epublatex/latex/tokenizer golang.org/x/crypto/sha3 Standard library imports encoding/base64 encoding/gob errors fmt html image image/jpeg image/png io io/ioutil log os path/filepath strconv strings