barebones tools

Which Adobe tool should you use?

Adobe has three products that come up when people search for this, and only two of them can actually compress a file. Picking the right one takes about thirty seconds once you know what separates them.

The short version

Acrobat on your desktop

Two features, depending on how much control you want. Reduced Size PDF is the one-click version — it applies Adobe's standard settings and is right most of the time. Optimized PDF opens the PDF Optimizer, where you decide separately what happens to images, fonts, transparency, embedded objects and user data.

Both sit under Save as Other — reached from the Menu on Windows and from File on macOS. The full walkthrough is here, including batch compression across a folder of files.

Choose this when you compress PDFs regularly, when you need a specific result, or when the document must not leave your computer.

Adobe's online compressor

A web page where you drop a file and choose High, Medium or Low compression. It takes files up to 2 GB, needs no installation, and is free for light use. Your document is uploaded to Adobe's servers and deleted afterwards unless you sign in to keep it.

Choose this for a one-off, when the document is not confidential, and when you do not want to install anything.

Adobe Acrobat Reader

The free viewer. It cannot compress — that capability belongs to Acrobat. If you have Reader and a file to shrink, your options are set out here.

Picking between them

Two questions settle it. Does the document need to stay private? If yes, that rules out any route that uploads it, which leaves desktop Acrobat — or a browser-based tool that processes the file locally. How often will you do this? Once a month and the free online route is fine. Several times a week and the subscription pays for itself in saved friction.

A third path. If you need a specific size — under 1 MB for a portal, under 500 KB for an email — none of Adobe's tools let you name a number. Our PDF compressor does: you set the target and it compresses to fit, entirely inside your browser with no upload. The cost is that text becomes part of the page image, so it is no longer selectable.

What none of them can fix

Every PDF has a floor. Page count, page dimensions and the document's own structure take up space before any image data is added, so a 200-page report will not fit into 200 KB through any tool, Adobe's included. When a file refuses to shrink, the usual reason is that it is mostly text and vectors already — there is nothing left to squeeze.

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