aktomat is described as 'Application for image files (JPEG, GIF, PNG, PDF and others) conversion - binarization into b/w PDFs' and is an app in the Photos & Graphics category. There are more than 25 alternatives to aktomat for a variety of platforms, including Windows, Online / Web-based, iPhone, iPad and Android. The best alternative is Adobe Acrobat DC. It's not free, so if you're looking for a free alternative, you could try PDF Reader or gscan2pdf. Other great apps like aktomat are Adobe Scan (Freemium), PDFill (Paid), LightPDF (Freemium) and JPEG to PDF (Free).
gscan2pdf can scan, clean the scan and do OCR on the scan or imported images (incl. existing PDFs, DjVus or other file types), and make PDF and DjVu-files with embedded OCR-text. It works together with tesseract, ocropus, cuneiform an gocr-OCR-engines
Adobe Scan turns your device into a powerful portable scanner that recognizes text automatically (OCR). Turn anything — receipts, notes, documents, pictures, business cards, whiteboards — into an Adobe PDF with content you can reuse.
With PDFill you can create, fill, delete and submit PDF form fields; insert new formatted text, check, image, hyperlink, whiteout, highlight, drawing, comment and annotation anywhere in the document; save, print or email the filled and password-protected PDF; save and resume...
LightPDF is the best free online PDF tool that allows you to edit and convert PDF. Also, you can use it to convert other types of files to PDF. It is quite easy and safe to use. No watermark, no plugins and no limits to the time or size.
JPEG to PDF is a free program that can convert image files to PDFs. The program provides page size options, as well as image positioning and scaling options. Supports additional image formats: BMP, GIF, PNG, TIF, WMF, EMF, in addition to JPG, JP2, J2K.