T2S - T2S app offers features through which you can open a pdf file to listen to it in your favorite language without much of a stretch.
Documize - Enterprise-grade wiki and knowledge management platform
Text to Speech (MP3 download) - Text to Speech (MP3 download) app offers features that let you create files in mp3 format by entering files in the text format.
HackMD - Fast and flexible, real-time collaborative markdown, inspired by Hackpad.
Text Reader: Text to Voice - Text Reader: Text to Voice is an educational app that allows users to listen to their favorite eBooks text files, documents, and letters in the voice of a large number of narrators and various accents from around the globe.
ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.