Laravel proof of concept generating (dom)pdf with images using signed links google cloud storage

For a webapp laravel development the current coder is stuck on the functionality mentioned below. My coder is to shy to ask for help :). So I need a working proof of concept of a small functioning code to give him some inspiration to get back on track. Pitfall: my coder has, like many others, problems with signed links for images and displaying them in the generated pdf. Description of the proof of concept: Page with upload button for uploading images. Underneath that a grid showing the images. Images are uploaded and saved on Google Cloud Storage using signed links Button on the page for generating pdf from that html using preferably DOMpdf (with or without BarryvdHeuvel LaravelWrapper, up to the coder to use it or make a custom implementation). The uploaded images should be displayed in a grid in that pdf with filename. Requirements: Laravel framework + mysql database Google Cloud Storage for storing images (able to change bucketdetails in .env to my own bucket) Use of Signed links for images for more security Dompdf or alternatives No fancy css needed, just proof of working concept Please tell me what you additionaly need to start this job.