Adobe Acrobat is the industry standard for PDF work. It is also $19.99/month for the standard plan and $239.88/year for the annual plan. For users who only need to merge, compress, convert, or sign a PDF occasionally, that is an expensive subscription for what amounts to a few minutes of work per month.

Here is a complete breakdown of free alternatives that cover the most common Adobe Acrobat use cases -- all browser-based, no install, no subscription.

What most people actually use Acrobat for

Adobe Acrobat has dozens of features, but the vast majority of users need only a few:

Merge multiple PDFs into one

Compress a PDF to reduce file size

Convert PDF to Word (or Word to PDF)

Add a signature to a PDF

Split a PDF into separate files

Rotate or remove pages

Add a watermark

All of these are available for free at Ultimate Tools PDF tools .

Feature-by-feature replacements

Merge PDF

Combine multiple PDF files into one document.…