Open Read aloud in Presentr Analyze, paste the text (up to about 500,000 characters, around 9 hours of audio in most languages), choose the language and a voice, and download one MP3. Long texts are read in parts and joined. For a PDF or scan, pull the text out first with Extract text.
2 credits per minute of audio, charged on the real length rounded up to the minute. In most languages about 900 characters make a minute, so a 90,000-character text is roughly 200 credits; Chinese, Japanese and Korean take fewer characters per minute.
It reads the text in the language you choose; it does not translate it. Translate a document first with Extract text, then read the translation aloud.