If you are weighing an Adobe Sign alternative UK, the question worth asking first is whether you need an enterprise e-signature platform, or whether you need to send confidential documents with control and get them signed without paying for, and administering, a heavyweight signing suite. Adobe Acrobat Sign is a capable, established signing product, usually bought as part of the wider Adobe stack. 99 Data Rooms takes a different shape: signing is one step of a single journey that also drafts, gates, tracks, watermarks and revokes, all UK-hosted in London (see our security page) and priced flat in pounds. The honest suggestion is to try 99 free, sign a real document end to end, and once you see the whole journey in one place, keep 99 and cancel the separate tools you have been paying for around it.
This speaks to founders, sales teams and any UK business that wants proper signing evidence without the weight and per-seat cost of an enterprise signing platform bolted to everything else. If you are shopping the wider field, our roundups of the best e-signature software UK and the best DocuSign alternatives UK set us alongside the rest.
A clear comparison
The table compares the two on signing and everything around it. Where an Adobe Sign capability depends on the plan or the wider Adobe subscription, we have written "check current plan", so confirm the specifics with Adobe directly.
| What matters | 99 Data Rooms | Adobe Sign |
|---|---|---|
| Built-in e-signature with audit certificate | Yes, from Pro | Yes, its core product |
| Page-by-page viewer analytics | Yes | No |
| Verified-email + NDA gate before viewing | Yes (NDA on Business) | No |
| Share a whole room of documents | Yes | No |
| Per-viewer watermarking | Yes (Business) | No |
| One-click revocation of access | Yes, even mid-view | Cancel or void a document, check current plan |
| AI legal drafting from vetted UK clauses | Yes, 17 vetted E&W templates | No |
| Data residency | UK (London) | Check current plan for region options |
| Pricing model | Flat GBP (Pro £19, Business £49) | Per seat or via Adobe suite, check current plan |
| Free tier | Yes, 3 rooms, 25 links, forever | Trial, check current plan |
The takeaway: Adobe Sign signs, and 99 Data Rooms signs plus drafts, gates, tracks, watermarks and revokes, in the UK, at a flat price (see 99 Data Rooms pricing) and without an enterprise suite to administer.
What Adobe Sign does well
Fair credit: Adobe Acrobat Sign is a mature signing product with strong PDF heritage and deep ties into the Adobe ecosystem, and for organisations already standardised on Adobe at scale, that integration has real value. The friction for many UK teams is that it is an enterprise-oriented, per-seat product, often only fully useful inside a broader Adobe subscription, when what they actually need is straightforward: send a confidential document with a verified gate, see it read, sign it with evidence, and be able to pull it back. That leaner, whole-journey control, kept in the UK at a flat price, is where 99 Data Rooms is built to win, so the sensible step is to try it free and see how much of your document workflow one place covers. If a leaner signing product is your comparison set, our 99 Data Rooms versus DocuSign and 99 Data Rooms versus HelloSign comparisons cover that ground too.
Where 99 Data Rooms wins
The advantage is that everything around the signature lives in the same place. In 99 Data Rooms you can draft a UK agreement from vetted England and Wales clauses in the AI drafter, which assembles vetted clauses rather than writing law, and is a starting point rather than legal advice, then gate it behind a verified email and, on Business, NDA acceptance (see gating and access control), share it as a tracked, revocable link, and watch page by page who read it before you send it for signature. Signing is built in from Pro, with sequential signers, reminders and an "extend" option for a signer who has gone quiet, and the executed PDF carries an audit certificate recording the signer's IP, intent to sign, timestamps and a SHA-256 fingerprint.
That signing is honest about UK law: electronic signatures are admissible for most commercial documents in England and Wales, though deeds, wills, land transfers and lasting powers of attorney carry extra requirements (see Sources), and this is general information, not legal advice. Where a standalone signing tool stops, 99 Data Rooms keeps going: you are not exporting a signed PDF into a separate system to track or store, and you can revoke access to the document afterwards in one click. It is UK-built and UK-hosted in London, data resident in the UK, AES-256 at rest, TLS 1.2+ in transit, with a DPA on request. On certifications we are precise: SOC 2 and ISO are held by our providers, Supabase and Cloudflare, not by 99 Data Rooms; we run on their audited platforms and do not claim their audits as our own.
Put concretely, a small deal team can draft a letter of intent, gather the diligence documents into a gated room, watch which buyer is actually engaging, and sign the agreement with an audit certificate, without an enterprise signing suite or a separate tracking tool. That is several subscriptions folded into one flat, UK-hosted place, which is why the honest recommendation is to try it free and keep what earns its place. Our guide to the best ways to send a contract securely in the UK walks the same loop, and our best virtual data room providers UK roundup is the wider view.
How to try it and what to compare
The honest way to decide is to sign a real document through 99 Data Rooms free and see how much sits around the signature in one place, no enterprise suite to administer. You draft or upload, gate, share as a tracked link, watch it read, sign with an audit certificate, and revoke afterwards, all self-serve. As you compare, be clear-eyed about how you buy Adobe Sign: if it comes as part of a wider Adobe subscription your team already needs, factor that in; if you are paying per seat mainly to sign, count the tools you add around it for sharing, tracking and drafting and set the total against 99's flat pound pricing. Check where Adobe stores your data against UK hosting in London if residency matters. And note that testing it costs nothing and needs no procurement cycle. Teams that run this comparison usually find that a lean, UK-hosted, flat-priced place covers the signing they needed plus the steps on either side, which is when keeping 99 and dropping the extras makes sense.
Try the UK-hosted alternative free
Try 99 Data Rooms free on a real document: the free tier is genuine, not a trial, three rooms, twenty-five active links, forever, no card. Start for free, draft, share, track and sign something end to end, and see how much of your current stack a single UK-hosted place replaces. It is in beta and improving fast, but the loop from draft to signature already works, so the honest next step is to try it and keep what earns its place.
Sources
- Adobe Acrobat Sign hosting, plans and per-seat pricing (verify current detail): Adobe official site, https://www.adobe.com , and Acrobat Sign, https://www.adobe.com/sign.html . Adobe Sign is typically bought per seat or within a wider Adobe subscription; treat plan, region and residency specifics as subject to change and check your current plan.
- Electronic signature admissibility in England and Wales: Law Commission, Electronic execution of documents (2019), https://lawcom.gov.uk/project/electronic-execution-of-documents/ ; HM Land Registry Practice Guide 82, https://www.gov.uk/government/publications/electronic-signatures-accepted-by-hm-land-registry-pg82
Is there a cheaper alternative to Adobe Sign in the UK?
99 Data Rooms is priced flat in pounds, Pro £19 and Business £49 a month, with a permanent free tier and no per-seat surcharge (see the pricing page). Whether it works out cheaper than Adobe Sign depends on Adobe's current pricing and whether you are buying it within a wider suite, plus how many separate tools 99 lets you cancel. Compare on the whole stack, and verify current prices with both.
Is Adobe Sign UK GDPR compliant, and where is data stored?
Confirm Adobe's current compliance and data-residency options with Adobe, as they can change and may vary by plan and region. The clear difference is that 99 Data Rooms is UK-hosted in London with data resident in the UK, UK GDPR and Data Protection Act 2018 aligned, with a DPA on request. For UK teams that need data kept in-region, that is often decisive.
Are e-signatures from 99 Data Rooms legally valid in England and Wales?
Electronic signatures are admissible for most commercial documents in England and Wales, and every signed PDF carries a tamper-evident audit certificate recording the signer's IP, intent to sign, timestamps and a SHA-256 fingerprint. Some instruments, such as deeds, wills, land transfers and lasting powers of attorney, have additional requirements (see Sources). This is general information, not legal advice.
Can 99 Data Rooms replace Adobe Sign for my team?
For most teams, yes, and it does more than sign: you get sharing, tracking, gating and drafting in one place, so it can absorb the separate tools around a signing product. If you are deeply embedded in the Adobe ecosystem or need very specific enterprise signing features, check those first. The free tier lets you confirm the fit before cancelling anything.
What happens after a document is signed?
In 99 Data Rooms the executed PDF files itself back where you shared it, with its audit certificate, and you keep page-by-page analytics and one-click revocation over access. You are not moving a signed file into a separate store, which is part of why one place tends to replace several tools.
Do I need the wider Adobe suite to use 99 Data Rooms?
No. 99 Data Rooms is a standalone, self-serve product: there is no broader suite to license, no per-seat enrolment, and no procurement cycle to begin. You sign up, draft or upload a document, and run it through gating, tracking and signature on a flat pound plan. That independence is part of the appeal for teams who only bought into a larger ecosystem to get signing in the first place. General information, not legal advice.
Comparison details are checked against public vendor pages at the date shown in the article and may have changed since. Names and trademarks belong to their owners.