Quick answer: Teachers can send notes and lecture recordings (often 1 to 3 GB for a lesson) with one short link, up to 20 GB per transfer on Share Large Video Files. For exam papers, set Available from and Close the link at, limit the link to your students' emails or school domain, and allow 1 download per person. To collect homework, create a file request: students upload to your link without an account.
Files teachers send, and how big they get
| File | Format | Typical size |
|---|---|---|
| Lesson recording, 45 min 1080p at 8 Mbps | MP4 | about 2.6 GB |
| Screen-recorded lesson, 45 min | MP4 | about 300 MB to 1 GB |
| Slides with images and video | PPTX, KEY | 20 to 300 MB |
| Notes or a question paper | PDF, DOCX | 1 to 20 MB |
| Scanned answer sheets for a class of 40 | 100 to 400 MB |
Can it go by email or chat?
Can you send a 45-minute lesson recording (about 2.6 GB) as an attachment?
| App | Limit | Fits? |
|---|---|---|
| Gmail | 25 MB per email | No, send a link |
| Outlook.com | 20 to 25 MB per email | No, send a link |
| WhatsApp (document) | 2 GB per file | No, send a link |
| Telegram | 2 GB per file | No, send a link |
| Facebook Messenger | 100 MB per file | No, send a link |
| Discord (free) | 20 MB per file | No, send a link |
| Slack | 1 GB per file | No, send a link |
| WeTransfer (free) | 3 GB per transfer | Yes |
| Share Large Video Files | 20 GB per transfer | Send the link anywhere |
Limits from our file size limits by app table, checked against each service's help pages.
A workflow that works
- Notes and recordings: upload them, set a Custom short link such as class10-physics-ch4, and write it on the board or show the QR code.
- Exam papers: set Available from to the start time and Close the link at to the end. Set Who can open the link to Only emails or domains I list and add your school domain.
- Use the Exam paper or Class notes preset to fill in the usual options in one tap.
- Homework: switch to Request files, start from the Assignment submission template, set a due date and share the link. Add your students by name to give each a personal link with automatic reminders. You collect and review the work from your private manage link.
- On your Transfers page, see who has downloaded the paper or notes.
Recommended options
| Option (under More options) | Setting | Why |
|---|---|---|
| Available from / Close the link at | Exam start and end | The paper cannot be opened early or late |
| Who can open the link | Only emails or domains I list | A forwarded link does not work for outsiders |
| Download limits: per person | 1 (exam papers) | One student cannot download for friends |
| Ask for details before the files open | Name, class, roll number | You know who has the notes |
| Custom short link | e.g. class10-maths | Easy to write on the board |
| View only (no downloads) | On for answer keys | Students can read, not save and forward |
Open the upload page with the “Class material” settings on: students confirm their email and give their name, class and roll number; 2 downloads each. Set a release time below for exam papers. You can change anything before sending, then press Save current next to Preset to keep your own version for every class.
Collecting work from students
A file request is a link that accepts uploads instead of offering downloads. Students open it, add their files (videos and big projects included) and press send; no account is needed. Each upload reaches you as a transfer. Set a due date and choose whether late work is accepted and marked late or refused. Add students by name and each gets a personal link, so you see who has handed in, and those who haven't get automatic reminders before the due date. You can approve each file or ask a student to send it again with a note, export the list as CSV, and make the request repeat weekly for regular homework. To give the files consistent names afterwards, use the free batch rename tool.
Frequently asked questions
How can I share a lecture recording with a class?
Upload it once and share one short link or QR code. The recording downloads in full quality, up to 20 GB, and students need no account.
Can I release an exam paper at an exact time?
Yes. Set Available from to the exam start and Close the link at to the end. Before the start the link shows a countdown.
Can students send me files?
Yes. Create a file request with a due date and share its link. Students upload without an account, you see who has handed in, and students you add by name get automatic reminders before the due date.
Can I see who downloaded the notes?
Yes, when students confirm their email or fill in the details form: your Transfers page lists who opened and downloaded.
Ready to send?
Drop your files, get a link, done. Free up to 20 GB — no account needed.
Send with Class material settings