PDF Shelter is described as 'brings a very innovative approach to PDF conversion. While established online tools rely on remote servers for doing all the processing, PDF Shelter allows operations to be carried out by the user's own browser, thus:' and is an website in the Office & Productivity category. There are more than 10 alternatives to PDF Shelter, not only websites but also apps for a variety of platforms, including Windows, Mac, 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 Smallpdf or Sejda. Other great sites and apps similar to PDF Shelter are Nitro Pro (Paid), iLovePDF (Freemium), PDF Reader (Freemium) and Foxit PhantomPDF (Paid).
Nitro Pro gives you everything you need to create, convert, edit, sign, and share 100% industry-standard PDF files. It's simple, straightforward, and intuitive to use — so you can work more productively, your way.
iLovePDF is an online service to work with PDF files completely free and easy to use. Merge PDF, split PDF, compress PDF, office to PDF, PDF to JPG and more! With iLovePDF you can: o Merge multiple PDF files into one. o Split a large PDF in several files.
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.
ApowerPDF is a rich-featured PDF editor, creator, reader and converter. It also offers some other stunning features such as managing PDF pages, adding signature, creating forms and protectin PDF files.