Also an option to bookmark your position would be great. Some articles are difficult to read in one go!

i'm also using Foxit pdf-to-text feature to upload my pdf ebooks on pastebin and use this to read them.

If you even open this up on github i'll be glad to contribute some features :D

True, but you can pause before checking. And still is better than having no idea whether it will take one minute or one hour to read the article.

It should be possible to change the color of the selected letter to indicate where you are on the page. Alternate option could be to position the word on the (current) vertical line to indicate where you are on the whole page. I'd like to believe that if the text is reasonable amount- the transition for either would be gradual.

Hoping the open source fairy sprinkles some dust on this one.

Maybe a progress bar along the bottom. Easy to pick up with your peripheral