Are you trying to open a password-protected PDF or ZIP file? Then, you already know how frustrating it can be. You try out different tools, and the result is a ...

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.

You can combine multiple PDF files into one document using basic software. Mac users can use the Preview app to combine their PDF files into one document. PC users ...

The Portable Document Format makes it possible for you to open and view documents, no matter what operating system, software or computer you have. To make this happen in Yahoo Mail, the email program ...

Do you have multiple PDFs you need to merge into one? Making one PDF out of many is easier than you might think on both Windows PCs and Macs. Here's how to do it on each platform. Our team tests, ...

Whether you're signing an I-9 document for a human resources, sharing workout tips with your best friend, or putting together documentation for a patent application, it's terrifically important that ...

You can open or import a surprising number of file formats into Microsoft Word. Not to be confused with file formatting, which—in most programs—refers to the design of a page, file formats are little ...

This Java-based application provides a variety of PDF functions such as combine, encrypt, rotate, split, and watermark. Open-source developer Michael Schierl describes jPDF Tweak as the “Swiss Army ...

The widely used PDF format supports data-saving encryption, allowing you to protect sensitive documents so that only those with the correct password can access them. In the old days, you’d need a ...