Yes it is possible, though increase resolution means different things depending on what you are starting with.
If you just resize an image to be larger using basic stretching, you'll get blur or pixelation because you're asking the software to invent detail that does not exist. But there are better approaches:
AI upscaling uses machine learning trained on millions of images to intelligently guess what missing details should look like edges, textures and fine lines rather than just smearing pixels. This gives noticeably sharper results than traditional resizing, especially for photos with clear subjects.
Vector conversion works great for logos or simple graphics: converting to SVG makes them scale to any size with zero quality loss, since they're math-based rather than pixel-based.
Smart sharpening after upscaling can also help recover some perceived crispness post-resize.
The honest caveat no method truly creates detail that was never captured AI upscaling is really good at making images look sharp and natural, but it's an educated guess, not magic restoration. For best results, start with the highest-quality original you have.
If you want a quick, free way to test this, tools like the image upscaler on ConvertFilePlus can resize and sharpen images in one step without needing any software installed worth trying on a sample image first to see if the result meets your needs before doing a big batch.
Visit here: https://convertfileplus.com/