pdf n up

PDF reader and note-taker for scientific papers.

PDF converter and OCR reader.

PDF viewer and note taker.

PDF signing utility.

PDF watermarking made easy.

Convert PDF or image graphics into searchable PDF.

Combine several PDF files into one single PDF.

Merge, split, compress PDF and extract text and image from PDF.

A pdf viewer that manages pdf files with tabs

Convert Amazon Music to MP3 format at 10X speed while preserving up to Ultra HD.