How to Print Labels on the Stamps
Printing labels (such as shipping labels ) on Stamps.com can be done easily. Follow the steps below to print your labels:
Steps:
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Access the Stamps.com Web Version
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Open your browser and go to https://print.stamps.com.
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Log in to your Stamps.com account.
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Select the Label Size
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On the page, locate the label size dropdown menu and select 4 x 6

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Print the Label
For Mobile App
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Download our Flashlabel Pro app via this link:
https://knaon.com/blogs/knaon-y41bt/how-to-use-printer-on-the-phone -
Import your PDF into the app and print directly. For detailed step-by-step instructions, please refer to the section titled "Print a PDF Label Using FlashLabel Pro App" in this link:
https://knaon.com/blogs/knaon-y41bt/how-to-use-printer-on-the-phone
If you're using an iPhone, go to "Save Label" and scroll down—you’ll see the "Print with FlashLabel Pro" option (see screenshot). You can print directly from here, no need to save PDFs or images first.

For Mac
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Enter the preview interface.
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Select the KNAON Y41BT printer.
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Choose paper size: 4×6inch.
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Click Print.
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For Windows
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Enter the preview interface.
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Select the KNAON Y41BT printer.

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Choose paper size: 100×150mm.
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Click Print.

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Troubleshooting:
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Printer Not Detected: Make sure your printer is turned on and connected to your computer.
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Incorrect Label Size: Verify that the label size in the printer settings matches the size selected in Stamps.com (e.g., 4x6).
Hot tip:
If you're using an iPhone with Stamps, go to "Save Label" and scroll down—you’ll see the "Print with FlashLabel Pro" option (see screenshot). You can print directly from here, no need to save PDFs or images first.
