Premiere Pro CC 2017 different media size input not rescaling.

[Imagewerx]

I have a video I'm editing which should have been all shot in 4K,but unfortunately I somehow managed to set the size down to 2704 x 1520 on a few of the clips I really need to include in the finished video.

I've tried exporting with the target size set at 3840 x 2160,but the smaller clips still come out small.Is the only way to do this to rescale using the video effects panel? Or do I have to go back to Media Encoder and upscale them that way for better quality?

[Imagewerx]

Thing's that go bump in the night.

[excited_Genie16B8]

Is the only way to do this to rescale using the video effects panel?

Yes.

[Imagewerx · Accepted solution]

Thanks for the answer.I tried it both ways and using Media Encoder to upscale them gave noticeably better results,almost as good as if they were recorded in 4K.