How to Use the In-App Document Viewer on iOS: Multi-Tab PDF, Excel, Word & Multitasking
A document sent in a chat opens inside Telegram rather than handing you to another app: the contract, the boarding pass, the slides, readable in place with the conversation underneath.
Nothing is saved anywhere by opening it, which is the part worth understanding in both directions.
What you will be able to do
- check_circle Read a document without leaving the chat.
- check_circle Keep it open while you reply.
- check_circle Know when to open it properly instead.
- check_circle Send documents people can actually read.
The document opens over the chat and can be minimised while you answer.
description Reading without collecting
The old sequence for a document was: download, open in something else, read, come back, lose your place, and be left with a file in a folder you will never tidy. Most of the clutter on a phone arrives that way.
Reading in place removes all of it. Nothing lands in your files, nothing needs deleting afterwards, and the document stays where it belongs — attached to the conversation that explains what it is.
It also works with the conversation rather than against it. The document can be minimised while you reply to a question about page four, then brought back where it was, so checking something and answering are no longer alternatives.
The limit is straightforward: it is a reader, not an editor. Anything you need to sign, fill in, annotate or keep beyond the life of the chat belongs in a proper application, and the share option is right there for that. Deciding which of the two you are doing takes a second and saves the version where you read a form carefully and then have to find it again.
Four situations
The last is about the documents you send rather than receive.
menu_book The common case
forum Discussing it as you read
open_in_new Open it properly
upload_file Making it readable
Read in place, leave to act. The chat is already where the document lives.
settings Using it
- Tap the document in the chat It opens over the conversation.
- Minimise it to reply And bring it back at the same place.
- Quote the line you are asking about Rather than describing it.
- Share it out to an app to sign or annotate The viewer only reads.
- Save a copy only for things you need in a year The chat keeps the rest.
- Name files properly when sending With a line saying what matters.
This page reads a document in place. The curriculum step is everything around the file itself: size limits, resumable transfers, how long things stay available, and treating a chat as a filing system that actually works.
