What is the largest screen size I can use with this teletepmpter?
7.8 inch*6.3 inch is the largest screen.
Can i download pdf or .doc file in app?
Unable to download pdf or .doc files in the app. But you can copy the text content in the app.
How far can I stand and still be able to read the teleprompter?
You can adjust the size of the texts through the TCQI APP, you can easily read it within 10FT.
Can this be used with a webcam or iPhone camera?
This Teleprompter can be used with mobile phone camera especially.
What is the maximum dimensions for the display/phone that will fit in the teleprompter (Width x Length )?
Any mobile phone smaller than 3.3inch*8inch.