You can use PS software to stitch the ID card scans into one page. If you don’t have PS software, you can use Meitu Xiu Xiu to operate.
How to use Meitu XiuXiu to stitch together:
1. First open the scanned PDF and save separate screenshots of the front and back of the ID card.
2. Then open the MeituXiuXiu software and click the "Puzzle" option button on the homepage.
3. Click the "Picture Stitching" option in the page that opens, and click the "Vertical" and "Rectangular" shapes.
4. Click to open the picture again, select the front and back pictures of the ID card to insert the pictures into the puzzle, adjust the distance between the pictures to be larger and save it.