How to compress a PDF for free — right inside Telegram
Put this guide to work
Try the tool with your own file. No separate File Hub account or desktop converter needed.
Open File Hub in TelegramBot uploads: up to 20 MB, including PRO. HD photo downloads require PRO.
This guide was prepared with AI assistance. Stock images illustrate the topic; they are not examples of processed files. Check the current options and limits in File Hub.
Your files, in your Telegram chat
Bot results include operation hashtags, so you can find them again with Telegram search.
An image Mini App
Compress, convert, resize, rotate, crop an avatar or remove EXIF locally. Other tools open in the bot.
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2 free uses of this tool per day. PRO removes daily use limits; it does not raise the bot’s 20 MB incoming-file limit.
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Why compress a PDF at all?
Email providers cap attachments (Gmail at 25 MB, many portals at 5–10 MB). Government and banking upload forms are even stricter. A single scanned contract or a photo-heavy report can blow past those limits fast.
Compressing a PDF re-encodes the images inside it and drops redundant data, so the file gets dramatically smaller while staying a normal, openable PDF. No need to split it, screenshot it, or pay for a desktop app.
How to compress a PDF in Telegram
You don't need a website or an install — it works in any Telegram app on any device:
- Open the bot. Tap Open File Hub (or search
@dwnl_hub_botin Telegram). No registration. - Send your PDF. Attach the file like you would to any chat — up to 20 MB (the Telegram Bot API limit).
- Tap “Compress”. The bot re-encodes the document server-side.
- Download the result. A smaller PDF comes straight back into the chat, usually within a few seconds.
How much smaller will it get?
It depends on what's inside. Rough real-world ranges:
- Scanned documents / photo-heavy PDFs: often 50–80% smaller — this is where compression shines.
- Slide decks exported to PDF: typically 30–60% smaller.
- Pure text PDFs: already small, so expect only minor gains.
The bot keeps the document readable — text stays selectable and pages stay intact. It's lossy only on embedded images, tuned so the drop in quality is hard to notice at normal reading zoom.
Is it private?
Yes. Files are processed transiently and deleted from the server right after the result is sent — nothing is stored, shared, or analysed. See the privacy policy for details.
FAQ
Is compressing a PDF free?
What's the maximum file size?
Will it ruin the quality?
Are my files stored?
Put this guide to work
Try the tool with your own file. No separate File Hub account or desktop converter needed.
Open File Hub in TelegramBot uploads: up to 20 MB, including PRO. HD photo downloads require PRO.