ฝั่งผู้ส่งมีไฟล์อยู่ในเครื่องนี้
- 1เลือกไฟล์ → สร้างลิงก์ส่งไฟล์
เลือกไฟล์ที่ต้องการส่งจากเครื่องของคุณ
- 2ส่งลิงก์ หรือให้ผู้รับสแกน QR
คัดลอกลิงก์ไปส่งในแชต แล้วเปิดหน้านี้รอ
- 3ตรวจชื่อผู้รับ แล้วกด “อนุมัติ”
รอผู้รับกดรับไฟล์ ระบบจึงจะเริ่มส่ง
New from PDFdee
Direct File Transfer
Device to device No file-storage server
Create a link or QR code for the recipient, then transfer files directly from your browser. The sender must approve the recipient before every transfer.
No file uploads
Sender approval required
No file relay fallback
Start your transfer here
Private transfer room
Must be opened via HTTPS or localhost.
Browsers allow direct transmission only on secure connections.
ส่ง–รับไฟล์ กดตามภาพได้เลยดูขั้นตอน
ฝั่งผู้ส่ง
ฝั่งผู้รับต้องการรับไฟล์จากอีกเครื่อง
- 1เปิดลิงก์ หรือสแกน QR ของผู้ส่ง
ตั้งชื่ออุปกรณ์ แล้วกด “ขอเชื่อมต่อกับผู้ส่ง”
- 2รอผู้ส่งกด “อนุมัติ”
บอกผู้ส่งว่าคุณใช้ชื่ออุปกรณ์อะไร
- 3กด “รับไฟล์ลงเครื่องนี้”
เลือกโฟลเดอร์ หรือกดดาวน์โหลดเมื่อรับครบ
ทั้งสองฝ่ายต้องเปิดหน้านี้และอินเทอร์เน็ตไว้จนสำเร็จ จากนั้นระบบจะปิดการเชื่อมต่อให้เอง
1
Select files from this device
The file remains local until the recipient connects and you approve.
Enter the file room
The sender must keep this page open and approve your device first.
This link is a temporary key.Don't forward it to unrelated people.
Request sent
Wait for the sender to approve.
Please keep this page open. When the sender approves The system will automatically connect the machine to the machine.
Connected
Prepare to send files
Preparing file list...
0 MB0 MB/s
Received file
ครบทุกไฟล์ ตรวจสอบแล้ว
ส่งไฟล์สำเร็จแล้ว!
Failed to connect
The two machines still cannot connect.
Try changing networks, turning off VPN, or opening the link again. This system will not send files indirectly through the server.
Recommended starting limits
Device-specific limits for a more reliable transfer
Where the data travels
File data and connection data follow different paths
The system never relays file bytes through the VPS. If the browsers cannot establish a direct connection, the transfer reports that it cannot connect.
File dataSender device → recipient device
Sent through a DTLS-encrypted WebRTC data channel and checked for completeness before success is shown.
Temporary connection dataUses the VPS only to establish the connection
Uses a room code, device name and the network information needed for the browsers to find each other. It does not include file contents.
VPS resourcesNo file transfer or storage
The VPS uses a small amount of CPU, memory and network traffic to serve the page and coordinate the connection. File size does not consume VPS disk storage.
How does it work?
Send files directly in three steps
Both devices must keep this page open and stay online at the same time so the file can travel directly between them.
Privacy by design
- PDFdee does not receive or store file contents
- The room link is a temporary connection key
- There is no file relay server fallback
How to use Direct File Transfer
- 1The sender selects the file.
Create a link or QR Code for the recipient. - 2Recipient requests connection
The sender checks the device name and presses to approve. - 3Direct browser
Check the completeness of the file when finished.
Frequently asked questions
Does PDFdee store my files?
No. The VPS only helps the devices connect using temporary room data; it does not receive file contents. After completion, the connection closes and the old room link cannot receive the files again.
Is the file encrypted in transit?
Yes. WebRTC data channels automatically protect data between the devices with DTLS. The sender should verify the device name before approval and share the room link only with the intended recipient.
How large can a transfer be?
The initial total limit is 2 GB on computers, 500 MB on Android and 250 MB on iPhone or iPad. These limits reduce memory pressure and the risk of the operating system closing a tab. Actual performance depends on both connections.
Why must the sender keep this page open?
The recipient receives data directly from the sender’s device. Closing the page, turning off the device or losing the internet connection stops the transfer.
What happens if the devices cannot connect?
The page suggests changing networks or disabling a VPN. It never uses the VPS as a file relay, so some corporate networks or restrictive firewalls may not support the transfer.
Which VPS resources are used during a transfer?
The VPS serves the page and exchanges temporary connection data, using a small amount of CPU, memory and network traffic. It does not receive file contents, store them on disk or use VPS bandwidth to carry the file.