FyTek's PDF Image Stream is a program to convert an image or group of images to PDF.
Each image occupies its own page in the PDF. The image is centered on the page by default and not scaled unless it is larger than the page size. You may chose to size the page to image size or vice-versa. See the chart below to download a free version for Windows or Linux. You may also purchase a copy to work with more file formats and create thumbnail pages.
Combine multiple images into one PDF
Create a PDF for each image
Scan a directory and, optionally, its subdirectories for images
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.