Adobe Acrobat Alternatives for Mac

There is a long list of work where Smol is not a candidate and Acrobat is the only serious answer. If any of the following describes your week, buy Acrobat Pro. The money is not the point; being able to do the job is.

You need to redact. Adobe lists “Redact sensitive content” as a Pro feature, and redaction means removing the underlying text and image data, not covering it with a rectangle. Every few years a law firm or a government department ships a PDF with a black box you can select and copy out of. Smol cannot redact at all. Compressing a document does not remove anything you can read.

You need PDF/A, preflight, or anything a printer specified. Acrobat Pro ships preflight profiles and droplets under print production, which inspect files against a standard, separate the passes from the failures, and write reports. If an archive requires PDF/A-2b or a press has sent you a preflight profile, there is no $29 substitute and there is no free substitute either.

You need OCR. A scan compressed by any tool is still a picture of text. Adobe’s “Turn scans into editable PDFs” makes it searchable. Smol will make that scan considerably smaller and it will still not be searchable afterwards.

You need forms, e-signatures or accessibility tagging. Web forms, bulk signature requests, tag trees for screen readers: this is the part of Acrobat that justifies its price, and it is a category Smol has never been in.

Your compression problem is a mixed-content problem. This is the one people miss. Acrobat’s PDF Optimizer treats colour, greyscale and monochrome images as three separate settings. On a contract with photographs, a scanned signature page and a bitmap letterhead, that distinction is the whole job, and no preset-based tool can express it. Smol applies one rule to every image in the file.

You are on Windows, or half your team is. There is no Windows build of Smol. Acrobat runs on both.

If you are still reading and none of those applied, the rest of this page is for you.

Read from adobe.com/acrobat/pricing.html on 25 September 2026, US pricing:

Adobe also answers the perpetual-licence question on that same page, and the answer is narrower than people assume. Perpetual versions ended after Acrobat 2020. The current non-subscription option, Acrobat Pro 2024, is described by Adobe as “a one-time, upfront purchase that provides three years of access to Acrobat desktop”, with quarterly security updates but no feature updates and no access to Acrobat online services in a browser or on mobile. It is a three-year term, not ownership. Adobe does not publish its price on the pricing page, so we are not going to quote one.

Here is the arithmetic that actually decides this, against the two web subscriptions people compare us to:

Five years of Acrobat Pro is US$1,170.40 more than one copy of Smol. That is not a criticism of Adobe’s pricing, which is aimed at people who use the whole product. It is a description of what you are spending if you are not one of them. The Smallpdf and iLovePDF figures come from our Smallpdf comparison and our iLovePDF comparison, both sourced the same way.

Run the test honestly. Open your own calendar and count how many times in the last year you did each of these things.

Redacted a document. Converted something to PDF/A. Ran a preflight profile. OCR’d a scan so it became searchable. Built a fillable form. Sent a signature request. Fixed a tag tree so a screen reader could follow the reading order. Compared two revisions of a contract.

If the count is zero, and the only PDF thing you did all year was drag a file into something because it was too big for Gmail, then Acrobat Pro is a US$239.88 annual answer to a problem that has $0 and $29 answers. macOS already ships one of those: Preview’s Reduce File Size is free and installed, and for a single file it is often enough. It is also a blunt instrument, which we take apart in what Preview’s Reduce File Size actually does — including the measured cases where it made a text-only PDF 111.8% and 258.5% bigger.

If the count is one or two, the interesting question is whether you can buy those one or two things separately. Many people can. A single month of Acrobat Pro at US$29.99, taken in the month you need to build the form, costs less than a year of it. Adobe makes that genuinely easy.

If the count is five or more, you are an Acrobat customer and this article is not about you. Go renew.

Acrobat has the more expressive compressor. Smol has the faster, blunter one. Both statements are true and they matter for different documents.

Acrobat’s PDF Optimizer, under File → Save as Other → Optimized PDF, exposes an Images panel with independent controls for colour, greyscale and monochrome images, plus panels for fonts, transparency, discarded objects and discarded user data. You can set a downsampling target in ppi and a compression method per image class. Nothing at $29 does that.

Smol gives you five presets. What each one does, measured rather than claimed, is cap the longest edge of every embedded image at a fixed pixel count and re-encode it:

Two consequences worth stating plainly, because they are the honest limitations of a pixel cap. First, a cap is not a DPI target: because it follows the image rather than the page, the same preset measured 160 PPI on a brochure photo and 108 PPI on a full-bleed scan page. If a spec says “nothing above 150 DPI, ever”, Acrobat’s Optimizer enforces that and our presets do not. Second, Original is the lightest preset, not a no-op. It still re-encodes, and it still resamples anything above 2,400 px. Nor does any preset strip metadata; that is a separate operation in Smol. The full breakdown is in what the PDF compression presets actually do.

On output size, the gap between a $29 app and a free one is larger than the gap between a $29 app and Adobe. Measured on an M2 Pro against a 3,734,814-byte image-heavy brochure, at roughly matched resolution: Preview’s filter produced 985,682 bytes at 144 PPI, Ghostscript’s /ebook produced 347,619 bytes at 150 PPI, and Smol at Medium produced 288,810 bytes at 160 PPI. Full method, corpus and caveats in the best PDF compressor for Mac. We did not benchmark Acrobat: we do not hold a licence and will not publish numbers we cannot reproduce.

Both tools batch. They ask very different things of you first.

Acrobat Pro batches through Action Wizard, which replaced the older batch-sequence mode. You build an Action from a list of commands, point it at a folder, and it runs. It is genuinely powerful, it can chain preflight and saving steps, and it is the right tool if your batch needs to do six things in order. It is also a thing you have to build, and most people build one, use it twice, and forget how it works.

Smol batches by drag and drop: select a folder, pick a preset, watch a receipt. Measured on an M2 Pro, three test PDFs totalling 56.8 MB finished in 3.6 seconds, and a separate run of 30 PDFs converted to JPG in 2,507 ms. There is also a behaviour worth knowing about for repeat runs: if a file comes out no smaller than it went in, Smol keeps the original and tells you why rather than writing a worse file over a good one. The batch walkthrough is in batch compress PDFs on Mac.

If your batch is part of something larger, Smol ships an MCP server, so an AI coding agent can drive it. As of Smol 1.0.35 that covers Claude Code, Codex and Google Antigravity, each one click in the AI access panel. In practice that means “compress every PDF in this release folder to Medium and report the sizes” becomes one instruction inside a build script rather than an Action you maintain by hand. Acrobat has no equivalent.

Five real answers, each right for a different person. Four of them are cheaper than Acrobat and two are free.

The cheapest honest advice on this page: try Preview first. It costs nothing and it is already on your Mac. If it works, you have saved US$239.88 a year and $29. If it mangles your file or makes it bigger, which it demonstrably can, you now know why and you can spend accordingly.

Related reading, all written the same way: how to compress a PDF on Mac tests five methods with real byte counts, getting a PDF under Gmail’s 25 MB limit covers the single most common reason people go looking for Acrobat in the first place, and the best PDF compressor for Mac ranks seven tools including this one.

If the $29 route is the one you want, Smol is a one-time purchase with no account, no upload and no renewal.