During a meeting or lecture, you may want to move away from the presenting computer while still advancing slides. A dedicated presentation clicker is one option, but using the phone you already carry avoids adding another device.
Presentation Remote opens a PPTX or PDF in the presenting computer's browser and pairs a phone by QR over direct WebRTC. The source presentation stays on the computer while the phone can control navigation, black screen, direct slide jumps, and pointer input. Presenter View can also show the current slide, next slide, and PowerPoint speaker notes. This guide covers preparation, pairing, live controls, and the main things to check when the two devices cannot connect.
Open the deck on the computer and check the network first
Open Presentation Remote on the presenting computer and choose a PPTX or PDF. The current UI accepts one file up to 150 MB. The document is parsed and rendered inside the computer browser rather than uploaded to an application server. You can also present with the computer alone using keyboard or on-screen controls.
If you want to use the phone remote, put the computer and phone on the same mutually reachable Wi-Fi/LAN. Presentation Remote uses direct device-to-device connectivity without a signaling server, STUN, or TURN, so guest-network client isolation, VPNs, or restrictive firewalls can prevent pairing.
Complete the two-way QR pairing between computer and phone
On the computer, choose the phone-connect action to display a pairing QR code. Open Presentation Remote on the phone, choose phone control, and scan the computer QR with the phone camera. The phone then shows a response QR, which you scan back on the computer.
After the two QR scans, the computer and phone establish the WebRTC connection between their browsers. There is no account or server-side pairing code. Camera permissions and WebRTC support vary by browser and operating system, so test the exact computer/phone combination before the live presentation.
Keep the next slide and speaker notes on the phone with Presenter View
With Presenter View enabled on the phone, the current slide appears larger and the next slide appears smaller. For PPTX files that contain PowerPoint speaker notes, the phone can also show the current slide's notes. The notes area can be collapsed and long notes scroll inside their own region. PDF files do not contain PowerPoint speaker notes, so notes are not available for PDFs.
Presenter View sends more than control messages: low-resolution current/next slide previews and the current PowerPoint speaker notes travel directly from the computer to the phone over WebRTC. The source presentation file itself is not sent to the phone. If you do not need previews or notes, turn Presenter View off and use the simpler remote layout.
Use the phone for more than previous and next during the presentation
The phone remote provides large Next and Previous controls plus swipe navigation, black screen, direct slide jumps, a timer, and a touch pointer. On supported devices and browsers, Device Orientation can drive a motion pointer, and Screen Wake Lock can help keep the remote display awake during the presentation.
Starting full-screen presentation mode requires a user action on the presenting computer because of browser restrictions. Sensors, vibration, Wake Lock, and camera access also depend on device, OS, browser support, and permissions. Test the controls you plan to use before the live session rather than discovering permission behavior on stage.
When pairing fails, check the Wi-Fi type and VPN first
If both QR codes scan successfully but pairing never completes, first check whether the computer and phone are truly on the same reachable LAN, whether a VPN is active, and whether the Wi-Fi is a guest or client-isolated network. Corporate, school, or hotel Wi-Fi can block device-to-device traffic even when both devices appear to use the same SSID.
Presentation Remote does not relay the connection through STUN/TURN infrastructure to bypass those restrictions. Its diagnostics can show candidate-pair and connectivity-check progress to help narrow down the likely cause. If the venue network is unfamiliar, verify the connection before the presentation.
Step by step
- Open Presentation Remote on the presenting computer and choose a PPTX or PDF.
- Connect the computer and phone to the same mutually reachable Wi-Fi/LAN.
- Choose the phone-connect action on the computer to display the pairing QR.
- Open Presentation Remote on the phone, choose phone control, and scan the computer QR.
- Scan the response QR shown on the phone back on the computer to complete the WebRTC connection.
- Enable Presenter View if needed to check current/next slides and PowerPoint speaker notes.
- Present using next/previous, swipes, black screen, direct slide jumps, pointer controls, and other remote actions.
Presentation Remote
Open a local PPTX or PDF on your computer and control it from a QR-paired phone, with current/next slide previews and speaker notes.
Tips and limitations
- Before the event, test the QR pairing with the exact computer, phone, and venue Wi-Fi you plan to use.
- Guest or client-isolated Wi-Fi can block direct communication even when both devices show the same SSID.
- Use a PPTX if you need PowerPoint speaker notes. PDF files do not contain those notes.
- If the phone does not need slide previews or notes, turn Presenter View off and use the simpler remote interface.
Frequently asked questions
Is the PPTX or PDF sent to the phone or an application server?
The source presentation is parsed and rendered in the presenting computer's browser and is not uploaded to an application server. During phone pairing, control data travels directly between devices, and Presenter View additionally sends low-resolution current/next previews and PowerPoint speaker notes from the computer to the phone.
Do the computer and phone need to use the same Wi-Fi?
Generally yes. Because pairing is direct and uses no signaling server, STUN, or TURN, the devices need to be mutually reachable on the same Wi-Fi/LAN. Guest Wi-Fi, client isolation, VPNs, or restrictive firewalls can prevent connection.
Can I use Presenter View with a PDF?
Yes for current and next slide previews. However, PDF files do not contain PowerPoint speaker notes, so PowerPoint notes are not available.
Do I need to install a dedicated phone app?
No. Open Presentation Remote in a browser on both the computer and phone, then pair them with the QR exchange.
What should I check if both QR codes scan but the connection still fails?
Confirm that both devices are on the same mutually reachable LAN, disable VPNs, and check whether the Wi-Fi uses guest/client isolation. If the venue network blocks device-to-device traffic, Presentation Remote does not bypass it through an external relay server.