Image2PDF (By L.X) at Mac App Store analyse

Image2PDF can convert image files to a PDF file in few click. 
With PDF for you can post your document on the internet, transmission via email, or incorporation into one document. By Image2PDF, you skip the hassle and inconvenience of manually selecting, uploading, and converting images on an online conversion.

Image2PDF lets you:

Convert the most popular image file formats to PDF format.
Convert multiple images in batch.
Produce a single PDF file for each image, or one PDF file containing all images.

How to use:
1. Drag and drop images to this application.
2. Choose one image drag and drop to the right position you want for change the sequence.
3. Change image rotation or flip image with toolbox which on the upper left corner.
4. Save the PDF file with "save" button which on the upper right corner.