Enhance these images for high-quality A0 sidewalk sign printing.

I have 6 images that my printing company has informed me are not of sufficient quality for large-format printing on A0 sidewalk signs. Please note that the required print dimensions are specified directly on each image. The images have been renamed according to their respective dimensions, and these dimensions must be used when resizing and preparing the files for print. I would like each image to be professionally enhanced and resized according to these exact dimensions while maintaining the correct proportions and composition. The work should include the following: • Improve and upscale the image quality to a professional print standard suitable for large-format A0 signage. • Adjust each image to the specified Height and Width indicated for that particular image. • Ensure that the images remain sharp, clear, and visually appealing when printed in large format. • Remove pixelation, blurriness, compression artifacts, and any other quality issues that may affect the final print result. • Optimize colors, contrast, and overall image clarity for commercial outdoor printing. • Prepare each image as a print-ready file suitable for professional printing companies. In addition, I would like to receive the final files in the following formats: • High-resolution PDF files ready for printing. • Vector files (if possible) so that the images can be scaled without losing quality. • Any other print-ready formats recommended for large-format commercial printing. The final deliverables must be fully suitable for professional large-scale printing and ready to be sent directly to my printing company without any further editing. Please note that this project must be completed and delivered no later than June 29, 2026.