I rely on a handful of open-source web apps that handle everyday tasks without installing anything locally.

Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

In today’s technological era, we have a lot of documents in PDF format. We use Adobe Acrobat Reader or any other similar application to read these documents. Many times, we need to edit a PDF file, ...