# Adobe Acrobat Sign — E-Signature

Adobe Acrobat Sign by Adobe Inc. holds a panel rating of 1.5/5 from 6 AI judges (category median 2.5/5), as of 2026-10-15. Provenance: Rest of world; sovereignty: not determined.

- Vendor: Adobe Inc. (https://www.adobe.com/de/acrobat/business/sign.html)
- Category: [E-Signature](https://whats-best.ai/software/e-signature.md)
- Provenance (editorial classification): Rest of world
- Canonical page: https://whats-best.ai/software/e-signature/adobe-acrobat-sign
- Alternatives: https://whats-best.ai/software/e-signature/adobe-acrobat-sign/alternatives ([markdown](https://whats-best.ai/software/e-signature/adobe-acrobat-sign/alternatives.md))
- Data as of: 2026-10-20 · evaluated 2026-10-15 · oldest source captured 2026-10-13

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## At a glance

- Vendor: Adobe Inc.
- Headquarters: Not stated on the vendor’s pages as of 13 Oct 2026
- Data hosting: Not stated on the vendor’s pages as of 13 Oct 2026
- Free plan: Yes, per the vendor’s own page [S2]

## The panel's verdict

Adobe Acrobat Sign, judged on captured developer pages, reads as a developer-integration product: integration and API is its strongest criterion, clustering at 5 to 6 on documented REST and webhook APIs, OAuth scopes, SDKs for Node.js, Java,.Net and Python, an OEM/Embedded partner track, and a PDF Electronic Seal API naming trust service providers Intesi Group, Entrust, GlobalSign and TrustPro plus qualified timestamp authorities. It is weakest on identity verification and pricing transparency, both scoring 0: we found no public information on how signers are identified, or on any price. Signature levels score 2 to 4 because qualified services are evidenced for seals only and never labelled for signer signatures. Signing workflow spans 2 to 4 — the HR operator credits account-free signing on any device, while others found no public information on templates, signing order, reminders or bulk sending. Sovereignty sits at a flat 3: no sovereignty attributes are on record, EU customers contract with Adobe Systems Software Ireland Limited under parent Adobe Inc. of San Jose, and we found no public information on data locations or subprocessors.

**Speaks for it:**
- Integration and API scores cluster at 5 to 6, on documented REST and webhook APIs with OAuth scopes, pagination and SDKs for Node.js, Java,.Net and Python
- The PDF Electronic Seal API names its trust service providers — Intesi Group, Entrust, GlobalSign, TrustPro — and RFC 3161 timestamp authorities including qualified ones
- Recipients sign on any desktop or device with a click, tap or swipe, with no downloads or accounts required
- Sealed documents get tamper detection and verification in Adobe Acrobat, carrying evidence and retention scores of 3 to 4
- An OEM/Embedded partner track offers private APIs for building signing into your own application or platform

**Held against it:**
- Identity verification scored 0, with no public information on how signers are identified or authenticated
- Qualified trust services are evidenced only for the seal API, with no signature level labelled for signers on any plan or country
- The documented signing flow is send, sign, track and store, with no public information on templates, signing order, reminders, bulk sending or delegation
- We found no public information on audit trail contents, retention periods or long-term validation of signed documents and their evidence
- No sovereignty attributes are on record, and we found no public information on data locations, subprocessors, or certifications beyond a referenced security overview document

**Best for:**
- You are a development team embedding e-signature or PDF sealing into your own application, website or platform via API
- You need to seal high-volume official documents such as invoices and statements with organization certificates and named qualified timestamps
- You want signers to complete documents quickly on any device without downloads or accounts
- You need a document pipeline that converts files to PDF, runs OCR to make text searchable, and archives the results

**Avoid if:**
- You must prove who signed, through identification methods such as codes, eID or video ident — the only signer-facing statement in the captured pages is click, tap or swipe signing with no downloads or accounts
- You need signer signatures at a defined level — simple, advanced or qualified — tied to plans and countries; qualified trust services are evidenced for the seal API only
- Your procurement requires sovereignty attributes on record, such as data locations or a subprocessor list, before signer and document data move

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price.

| Criterion | The Legal Counsel | The HR Operations Lead | The Revenue Operations Lead | The Integration Engineer | The Data Protection Officer | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| eIDAS levels & trust services | 2/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1/5 |
| Signer identification | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |
| Signing workflow & signer experience | 1.5/5 | 2/5 | 1/5 | 1/5 | 1/5 | 1/5 |
| Evidence, validation & retention | 2/5 | 1.5/5 | 2/5 | 2/5 | 1.5/5 | 2/5 |
| Integrations & API | 3/5 | 2.5/5 | 3/5 | 3/5 | 3/5 | 3/5 |
| European sovereignty | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 | 1.5/5 |
| Pricing transparency | n/r | n/r | n/r | n/r | n/r | n/r |
| **Weighted verdict** | **1.5/5** | **1.5/5** | **1.5/5** | **2/5** | **1/5** | **1.5/5** |

### The judges

- **The Legal Counsel** (v1.0): Decides which contracts may be signed electronically and at which level. Wants SES, AdES and QES named per plan and country, the qualified trust service provider linked to the EU Trust List, and an audit trail with timestamps that still validates when the contract is disputed in eight years.
- **The HR Operations Lead** (v1.0): Sends two hundred employment contracts a year, many of them fixed-term and so under written form. Wants QES that a new hire can complete on a phone in ten minutes, identification that accepts the IDs applicants actually hold, bulk sending from templates, and a price per qualified signature known before the contract is signed.
- **The Revenue Operations Lead** (v1.0): Measures how long a quote takes to come back signed and where it stalls. Wants signing from inside the CRM, templates sales cannot break, reminders and signing order that run themselves, and a signer experience that needs no account, no app and no explanation.
- **The Integration Engineer** (v1.0): Embeds signing into the company's own portal and archives the result in the DMS. Wants a versioned API with webhooks and a sandbox, every signature level reachable through the API rather than only in the web app, and signed documents exported with their evidence intact.
- **The Data Protection Officer** (v1.0): Knows every signer who holds an ID card up to a camera hands biometric and identity data to a provider they never chose. Asks who performs the identification, where documents and ID data are stored, how long the audit trail keeps IP addresses, and who the subprocessors in the trust service chain are.
- **The Skeptic** (v1.0): Knows "legally binding" usually means a simple signature. Reads for the level the default plan actually signs at, the QTSP the provider does not operate itself, the per-QES and ident fees on top of the plan, the envelope limit, and "eIDAS-compliant" from a provider that names no trust service at all.

## European sovereignty — proven facts

No sovereignty finding yet.

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Auth requirements: explicit authorization (static PIN only) · OAuth 2.0 client credentials [S1]
- Certifications: SOC 2 Type 2 · ISO 27001 · FedRAMP Tailored · PCI DSS [S6]
- Eidas levels: Simple · AdES · QES [S2]
- Eidas qtsp: yes · yes [S1]
- Regulatory configurable: HIPAA · FERPA · GLBA · FDA 21 CFR Part 11 [S6]

**Integrations**
- Aatl tsp certificates: yes · yes [S2]
- Community resources: Adobe Developers Blog · Adobe on GitHub · Adobe Developer on YouTube · Adobe Developer on X · Community Forums [S6]
- Post webhook endpoints scope: POST /webhookEndpoints · webhook_write · 201 [S5]
- Supported tsas: Adobe Qualified Timestamp · Intesi Group · DigiCert Timestamp · GlobalSign Timestamp · InfoCert Qualified TSA · Namirial Qualified TSA · QuoVadis · Seiko Timestamp Service · RFC3161 [S1]
- Supported tsps: Intesi Group · Entrust · GlobalSign · TrustPro [S1]
- Webhook endpoint admin permission: Account Admin only [S5]
- Webhook endpoint API purpose: manage webhookEndpoints supporting OAuth2.0 for webhooks in Acrobat Sign [S5]
- Webhook endpoint app limit: 25 [S5]
- Webhook endpoint crud endpoints: POST /webhookEndpoints · GET /webhookEndpoints · GET /webhookEndpoints/{webhookEndpointId} · PUT /webhookEndpoints/{webhookEndpointId} · DELETE /webhookEndpoints/{webhookEndpointId} [S5]
- Webhook endpoint custom headers: Custom headers configurable per webhookEndpoint [S5]
- Webhook endpoint delete scope: DELETE /webhookEndpoints/{webhookEndpointId} · webhook_retention · 204 [S5]
- Webhook endpoint get scope: GET /webhookEndpoints · webhook_read [S5]
- Webhook endpoint https required: Webhook endpoint URLs must be HTTPS [S5]
- Webhook endpoint name limit: 255 [S5]
- Webhook endpoint oauth token usage: OAuth2.0 access token fetched from authorization server URL before webhook notification [S5]
- Webhook endpoint pagination: cursor · 100 [S5]
- Webhook endpoint prereq setting: WEBHOOK_OAUTH20_ROLLOUT [S5]
- Webhook endpoint read permission: Group Admin · Account Admin [S5]

**Pricing**
- Free tier: yes · 500 [S2]

**Product**
- API capabilities: send document for e-signature · recipients sign on any desktop or device without downloads or accounts · track document status · securely store approved documents [S6]
- Customizable seal: yes · yes · yes [S2]
- Description: Cloud-based API to apply electronic seals on PDF documents using organization digital certificates [S1]
- E seal verification: E-seal verification via Adobe Acrobat with tamper-evident credentials [S2]
- Electronic seal API: PDF Electronic Seal API seals PDF documents at scale for document authenticity and identity [S2]
- Esign API: Adobe Acrobat Sign APIs let developers integrate e-signature capabilities into mobile apps, websites, or platforms [S6]
- Esignature law compliance: E-signature law compliance supported in US, Europe, Japan, Australia and virtually every other industrialized nation [S6]
- Live demo: yes [S1]
- Ocr operation: OCR [S3]
- Ocr searchable: OCR on scanned images to produce machine-readable, searchable documents [S3]
- Partner program tiers: OEM/Embedded partnership for native integrations, and an Integration Only Partner track for integrations between Acrobat Sign and other applications [S6]
- Pdf conversion: Convert various file types to PDF for standardization [S3]
- Pdf create operation: Create PDF [S3]
- Pdf max size: 100 [S1]
- Private API access: Acrobat Sign Partner Program provides access to private APIs and other resources to embed Acrobat Sign capabilities [S6]
- Relevant API: Adobe PDF Services API [S3]
- Rest API no hardware: yes · no [S2]
- Sdk languages: Node.js · Java · .Net · Python [S2]
- Seal image limits: 5 · JPEG · PNG · PDF · yes [S1]
- Seal representations: image · text block · image and text [S1]
- Search enabled: Search of converted documents [S3]
- Security overview: A security overview document is available [S6]
- Tamper detection: yes [S2]
- Use case count: 1 [S3]

**Support**
- Developer support: Adobe Developer Support is available via the developer site [S6]
- Forum: Adobe Forum · Contact us [S2]
- Other tsa request: yes [S1]

## Questions

### Is Adobe Acrobat Sign European?

No. whats-best.ai classifies Adobe Acrobat Sign as Rest of world.

### Where does Adobe Acrobat Sign store data?

Not stated on the vendor’s pages as of 13 Oct 2026.

### Does Adobe Acrobat Sign have a free plan?

Yes. Adobe Acrobat Sign has a free plan, per [the vendor’s page captured 13 Oct 2026](https://whats-best.ai/evidence/6627).

### What are the best alternatives to Adobe Acrobat Sign?

As of 15 Oct 2026, the panel rates [Penneo (2.5/5)](https://whats-best.ai/software/e-signature/penneo), [Youtrust (Yousign) (2.5/5)](https://whats-best.ai/software/e-signature/youtrust) and [MOXIS (2.5/5)](https://whats-best.ai/software/e-signature/moxis) highest among the other 14 E-Signature products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [Penneo](https://whats-best.ai/software/e-signature/penneo) (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [Adobe Acrobat Sign alternatives](https://whats-best.ai/software/e-signature/adobe-acrobat-sign/alternatives).

## What this page leaves out

- 10 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 2 integrations facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 6 of the readings below were written against an earlier fact sheet — a fact has been corrected, added or pulled since. Until the panel next runs on this product you are reading the older judgement.

## Sources

- [S1] EIDAS levels & trust services — found from sitemap: https://developer.adobe.com/document-services/docs/overview/pdf-electronic-seal-api/ (checked 2026-10-13)
- [S2] EIDAS levels & trust services — found from sitemap: https://developer.adobe.com/document-services/apis/electronic-seal-api/ (checked 2026-10-13)
- [S3] Evidence, validation & retention — found from sitemap: https://developer.adobe.com/document-services/use-cases/archiving-and-retrieval/ (checked 2026-10-13)
- [S4] Evidence, validation & retention — found from sitemap: https://developer.adobe.com/vipmp/docs/references/validations (checked 2026-10-13)
- [S5] Integrations & API — found from sitemap: https://developer.adobe.com/acrobat-sign/docs/overview/developer_guide/webhook-endpoint-api (checked 2026-10-13)
- [S6] Integrations & API — found from sitemap: https://developer.adobe.com/adobesign-api/ (checked 2026-10-13)

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Cite as: whats-best.ai, "Adobe Acrobat Sign — E-Signature", AI panel analysis, as of 2026-10-20. https://whats-best.ai/software/e-signature/adobe-acrobat-sign

Corrections: https://whats-best.ai/correct/642?target=page