PhotoPDF

PhotoPDF is a program that enables you to easily convert images of various formats (e.g. JPG, BMP, PNG, TIF) to PDF documents in batch mode.
The interface of the tool is simple and intuitive. Images can be imported into the list via the file browser or "drag and drop" method.
So, once you set the output destination and format, you can initiate the conversion process.
But you can also configure settings when it comes to the paper size, resolution, orientation, image compression, brightness and contrast.
On top of that, you can add a text watermark, adjust the opacity level and set the alignment, merge images and create thumbnails (set the number of columns and rows, spacing). Settings can be saved as default or restored to their initial values.
In addition, you can preview the photos, change the interface language, edit PDF file properties (e.g. title, author, keywords), set a program password, backup and restore files, and more.
The straightforward application runs on a moderate-to-high amount of system resources, includes a well-drawn help file with snapshots, quickly finishes a task and didn't freeze, crash or pop up errors during our test.
The interface needs some improvements, since it is slightly outdated. The bottom line is that PhotoPDF is an excellent tool for image-to-PDF conversions and we highly recommend it to all users, regardless of their experience level.