waifu2x VS FidelityFX-CLI

You can export the large PDF as a JPG then resize it using Tools > Adjust Size. You could also use https://waifu2x.udp.jp to "up-size" the smaller file to give it a bit more resolution. You can set up an Automator script to resize multiple images.

Just use waifu2x to make it bigger

Crop it yourself with Gimp (free) or Photoshop (paid), then upscale it with something like Waifu2x.

You can use https://waifu2x.udp.jp/ AI to enhance 2k or 4k. I made a 2k wallpaper.

You can try screenshot it and go to waifu2x to make it bigger

waifu2x

Hello, I'm having an issue installing FidelityFX-CLI on my computer.

There is no way which works for all the projects. But reading the README or provided documentation is a good start. This one states its a windows solution for upscaling images. And it has precompuked binaries on its releases page.

You can try how the upscaling works yourself: https://github.com/GPUOpen-Effects/FidelityFX-CLI

These were upscaled 2x using FidelityFX-CLI (aka AMD FSR). I think it did a decent job (source res was 720p so 🤷‍♂️ - Better screens could be pulled from an emulator or something). I'm not too familiar with the settings for this tool, so I just used:

For this test I used FidelityFX-CLI for EASU (FSR) and Hybrid for Lanczos. The screenshot is taken from the official FSR demo, but I didn't used the built-in FSR in order to make it a more fair comparison.

You'll need FFmpeg and FidelityFX CLI, but if you don't want to use FFmpeg, any image editing software with Lanczos support should do.