There a method where you can save all data in your Facebook and messenger account by requesting to download your info to Facebook. But if youre looking to save all photos from one contact alone so far there no easy way to save all unless they sent the photos in bulk at a time. There a way to at least see all the photos and from there you can save all photos you like one by one. Go to the messenger and select the contact you wish to save photos from On the message click the person name on top Once clicking this the messenger will reveal all action available including the color of messages emojis nickname change PHOTOS and VIDEOS search conversation etc. Select Photos and Videos. You will be able to see all the photos exchanged between you and the selected contact. Click on the photo to open. When the photo is open click more then click save. Do the same for the rest of the photos. How to request all photos and videos from Facebook Open Facebook and go to Settings & Privacy then tap Settings. Click Access your Information Click Download your information and select your Photos and videos and Messages A notification will appear if Facebook approves and gives you a where you will download it. Once youve downloaded all your photos you can nowpile all as one PDF file. You can try using DeftPDF JPG to PDF converter s to do this. Go to DeftPDF and select the JPEG to PDF tool. Upload photos (make sure to select all). You can upload it in bulk or batch. Click convert and download. This will provide you one PDF for all files.