The most common method for sending photos to a digital picture frame is via email. You simply need to add the pictures as an attachment and send the email to the frame’s dedicated and unique email address.
Using the mobile app to send pictures, videos, and audio to a digital photo frame is arguably the most versatile and capable of the lot. You can natively capture media directly inside the app, or select media you’ve captured in the past in your phone’s media gallery. You can then send all these photos/videos/audios to your frame – or multiple frames at the same time.
Other ways of getting photos onto your frame include linking them to your photo albums on your favorite social media and photo-sharing platforms. Alternatively, some digital photo frames provide ways to send pictures to you through the web interface.
Finally, the only offline method involved loading your photos onto a USB/SD card, inserting them into your frame’s relevant port, and viewing them directly on the frame. Note that you might need to copy the pictures across to the frame's internal storage before being able to view them.