Smallpdf
Compress, convert, merge, sign and now summarise PDFs in the browser, with nothing to install and no account for a one-off job.
What you'd use it for
Getting a PDF to do what you need right now -- shrink under an email limit, turn a scan into editable text, get it signed -- without buying Acrobat.
- Compress a file that is too large to email, convert between PDF and Office formats, merge and split documents, across 30-plus tools
- Run OCR over a scan so the text can be searched and edited rather than only viewed
- Ask questions of a PDF, summarise it, or translate it, with the free tier capped at a smaller document
- Sign documents and send them for signature through the bundled Sign.com subscription
- Work from the browser, the desktop app or mobile, without installing anything for the basic jobs
The verdict
Smallpdf is the sensible answer to a problem most small businesses solve badly, which is that they need six mechanical PDF operations a month and Acrobat wants a subscription for it. Thirty-odd tools work in the browser with nothing installed, and the free tier really does let you use them -- it limits how many results you can download in a day rather than which tools you can open, which is a fairer trade than most. Pro at $9 a month on an annual plan removes that and unbundles the AI limits. One quirk worth knowing: the Team rate is $7 a seat, cheaper per person than Pro, so for any two-person business two Team seats beat two Pro subscriptions. The AI features are real but light, and the 50MB file ceiling on them does not move at any price.
What it costs
| Tier | Price | For | Includes |
|---|---|---|---|
| Free | $0, one user, no account needed for a one-off job | The occasional file that needs shrinking, converting or signing. | All 30-plus document tools, but with a daily download limit, limited mobile app access, and a Sign.com free account capped at 2 documents a month. The AI tools work on documents of 25,000 to 35,000 words. |
| Pro | $9/month billed annually ($108/year), or $12/month billed monthly. One user | Smallpdf's most popular plan, and the right one for a single regular user. | Unlimited downloads and unlimited access to all 30-plus tools, text editing and OCR, strong compression, unlimited use of the AI tools on documents up to 100,000 words, unlimited mobile access, and a full Sign.com Premium subscription. |
| Team | $7/month per seat billed annually ($168/year for two seats), or $10/month per seat billed monthly. Two to nineteen seats | Any business with more than one person, and cheaper per head than Pro. | Everything in Pro at a lower per-seat rate, plus centralised billing, member access management, priority support, and a Sign.com Premium subscription for every member. |
| Business | Custom pricing, twenty seats or more | Larger organisations wanting negotiated terms. | Everything in Team, plus custom pricing, flexible payment options and dedicated support. |
Read from Smallpdf's own pricing page on 25 Sep 2026. Vendors change prices without notice.
What you need to start
- A browser. There is nothing to install for the core tools, and no account for a single one-off job
- An account before you can use the free daily allowance rather than a single anonymous job
- A file under 50MB for any of the AI tools, on every plan including Business
Seconds for a one-off job with no account at all. A minute to sign up if you want the daily free allowance, and the free trial on a paid plan starts without a wait.
Your first run Drag a file onto the tool you want and the result is ready in seconds without an account. On the free tier the thing to watch is the download step, not the processing -- that is where the daily limit bites.
Where it breaks
The AI file-size limit is 50MB on Free, Pro, Team and Business alike -- paying more does not raise it, and a large scanned document will be refused at any price. The word limit does move, from 25,000 to 35,000 words on Free to 100,000 on every paid plan. Note also that the Team rate is lower per seat than Pro ($7 against $9 on annual billing), so a two-person business pays $14 a month on Team against $18 for two Pro subscriptions -- the cheaper plan is the one aimed at bigger buyers, which is the reverse of the usual arrangement and easy to miss.
Browser-based, with desktop and mobile apps. Built in Switzerland, which is the detail to weigh if where your documents are processed matters to you. Every paid plan bundles a Sign.com Premium subscription, so the e-signature product is not a separate purchase.
Previously unpublished: Smallpdf renders its pricing client-side and returned an empty template to every fetch, so the entry carried no confirmed tier names or figures and was held as a draft. Read in a browser and now published with all four plans on both billing intervals. For whoever checks this next: the price widget shows a literal "..." placeholder for roughly forty seconds before the figures appear, and the trial button is inert until it resolves. The page is slow, not unreadable. Wait for it rather than recording it as unfetchable.
When not to use it
Not for anyone whose PDF work is mostly reading and reasoning over long documents -- a general assistant with file upload does more with a contract than Smallpdf's summariser, and the 50MB AI file limit is identical on every plan including the custom-priced one, so a large scanned document is out of reach no matter what you pay. Not for a business that needs an audit trail on signatures beyond what the bundled Sign.com account provides. And not for a solo user who only needs signing: the free tier caps Sign.com at two documents a month, which is the limit most people actually hit first.
Smallpdf occupies the same shelf as a dozen other browser-based PDF utilities — compress a file that’s too big to email, convert a scan to Word, add an e-signature — and its main appeal is that most of that works without creating an account or installing anything. The AI framing is newer and lighter than the core utility: summarising, chatting to a document and translating sit alongside the older compression and conversion tools rather than replacing them.
The free tier limits downloads, not tools
This is the detail that decides whether free works for you, and it is a more honest trade than most.
Smallpdf does not lock its tools behind the paywall. All thirty-odd are open on the free tier. What it limits is how many results you can download in a day. So you find out whether the compression was good enough before you are asked for money, which is the right way round, and the free tier genuinely covers a business doing a handful of PDF jobs a month.
The limit most people actually hit first is elsewhere: the bundled Sign.com account on free is capped at two documents a month. If signing is why you came, that is the ceiling, not the downloads.
The cheaper plan is the one for bigger buyers
Pro is $9 a seat a month on annual billing. Team is $7 a seat — less per person, for a plan that requires at least two of them.
That inverts the usual arrangement, and the arithmetic is worth doing. Two people on Team cost $14 a month. The same two people on individual Pro subscriptions cost $18, for the same features minus centralised billing and member management. Any business with more than one person should be looking at Team, and the page does not point this out.
Monthly billing runs $12 for Pro and $10 a seat for Team, so the annual commitment saves 25% on Pro and 30% on Team — the vendor badges the toggle at 31%, which is the best case rather than either actual figure.
What the AI actually does, and the ceiling that does not move
Chat with a PDF, summarise it, translate it, generate questions from it. On free these are marked limited and work on documents of roughly 25,000 to 35,000 words; every paid plan takes that to 100,000.
The number that does not change is the file size: 50MB, on every plan including the custom-priced Business tier. That is not a lot for a scanned document, and it means a large PDF is out of reach at any price rather than one upgrade away. If large scans are the job, check that ceiling against a real file before buying.
Against the alternatives
For document-heavy AI work specifically — extracting structured data, reasoning over a long contract — a general assistant like ChatGPT or Claude with file upload does more than Smallpdf’s summariser, and neither charges extra for it if you already subscribe. Smallpdf’s advantage stays in the mechanical operations — compress, convert, merge, OCR, sign — that a chat assistant handles poorly or not at all.
Against Adobe Acrobat, the honest split is depth against price. Acrobat does more and costs more; Smallpdf does the common six things for a quarter of the money and runs in a browser tab.
Alternatives
Adobe Acrobat AI Assistant
Ask questions of any PDF and get cited answers, summaries, and first-draft rewrites pulled straight from the document's contents.
PDF.ai
Upload a document and ask questions across it in chat, with a Chrome extension that works on any PDF you already have open in the browser.
Assistants & chatAppsChatGPT
OpenAI's assistant in a browser tab, a desktop app and a phone app, where you ask questions, draft text, and hand it files or spreadsheets to work through.
Assistants & chatModelClaude
Anthropic's AI assistant, available in a browser tab and — the part that matters here — as a desktop app that can read the files on your own machine and reach the systems you connect to it.
Get Smallpdf
Buying the tool is not the hard part.
The ebook is about what to hand over, in what order, and how you find out when it goes wrong. One payment, no subscription.