Products / Documents & files
Hoq Sign
Send a PDF for signature, get back one sealed copy with its audit trail.
What it does
Hoq Sign sends a PDF to one or more people for signature. Each person gets their own link by email and signs in the browser. Signers do not need a Hoq account.
You choose the order. Signers can go one after another or all at once. Hoq Sign reminds whoever is waiting every three days, up to three times, and closes requests that pass their expiry date.
When everyone has signed, the values are written onto the pages, a certificate of completion is added, and the whole file gets a PAdES digital seal. Every step is recorded in an audit log where each entry carries the hash of the one before it.
Most people send from Hoq PDF, which places the fields and saves the signed copy back beside the original in your drive. Other software can send through the REST API.
In numbers
6field types: signature, initials, date, text, name, checkbox
72 hoursbetween reminders, at most 3 per signer
10 minuteslife of a one-time signer code
2routing modes: in order or all at once
Specifications
| Signers | No account needed. The link in their email is their access to that one document. |
|---|---|
| Routing | Sequential (one after another) or parallel (everyone at once). |
| Field types | Signature, initials, date, text, name and checkbox. |
| Signing methods | Draw, type, or upload a picture of a signature, on desktop or phone. |
| Finished document | Field values written onto the pages, a certificate of completion page added, then a PAdES seal over the whole file. |
| Certificate of completion | Lists each signer, when they signed, their IP address, their verification level, the document's SHA-256 hash and the audit chain head. |
| Audit trail | Append-only and SHA-256 hash-chained per envelope, so a changed entry breaks the chain. |
| Extra signer check | A request can require a one-time code sent to the signer's email. The code expires in 10 minutes. |
| Reminders and expiry | Reminders go to the person whose turn it is every 72 hours, at most three. Requests close at their expiry date. |
| Signer options | Signers can decline, and can download the document from their signing page. |
| Hoq Sign sends the invitation, your-turn, reminder, declined and signed-copy emails itself. |
Features
17 features, all shipped. Listed from the product's code and documentation; each row shows the day it was last checked.
| Request signatures from Hoq PDF | Add people, set an order, place fields for each person and send. | |
| Send by API | Create an envelope with a PDF, fields and recipients, and send it in one call. | |
| Field detection | An API call suggests where the fields go on an uploaded PDF. | |
| Personal message | Add a note that goes out with the invitation. |
| Status | See who has opened, signed or declined each request. | |
| Remind | Send a reminder now to whoever is waiting. | |
| Void | Cancel a request that is still out. | |
| Automatic reminders and expiry | A schedule reminds and expires requests without you. |
| Guided signing page | Walks the signer from field to field, with a bottom sheet on phones. | |
| Consent step | Signers agree to sign electronically before they can sign. | |
| Email code check | Optional one-time code before signing. | |
| Decline | A signer can refuse, and the sender is told. |
| PAdES seal | A digital seal over the finished PDF that shows if anything changes afterwards. | |
| Certificate of completion | A page added to the PDF with who signed, when, from where and the document hash. | |
| Hash-chained audit log | Every event is linked to the one before it so tampering shows. | |
| Seal your own signature | Seal a PDF you signed yourself, in one step, with the same certificate and seal. | |
| Signed copy saved to your drive | When sent from Hoq PDF, the sealed PDF is saved next to the original. |
Works with
- Hoq PDFHoq PDF prepares and sends requests, and receives the signed copy.
- Hoq StorageSigned copies sent from Hoq PDF land in your Hoq Storage drive.
Your data
| Where it is kept | The PDF and envelope records are held by Hoq Sign on our servers. When you send from Hoq PDF, the signed copy is also saved in your Hoq Storage drive. |
|---|---|
| Getting it out | Download the sealed PDF from the API (GET /v1/envelopes/{id}/document) or from your drive. |
| If you leave | not published |
APIs and standards
- REST API at /v1 with a Bearer key: create, send, list, get, remind, void, download, self-seal, detect fields
- Signer pages at /s/{token} that need no account
- Standard: PAdES
- Standard: SHA-256
- Standard: PDF
Compared
| Checked 2026-11-01 | Hoq Sign | Docusign eSignature Standard | Dropbox Sign Standard |
|---|---|---|---|
| Price per user per month | not published | $30, annual commitment1 | $25 monthly, or $17.50 billed yearly2 |
| Sending limit | None set in the product | 100 envelopes per user per year1 | Unlimited signature requests2 |
| Templates | Not in the app yet | Yes1 | 152 |
| API access | Included | Business Pro ($45) and up1 | Separate API plans, from 50 requests a month3 |
| Bulk send | No | Business Pro and up1 | not published2 |
| Signer verification | One-time email code | SMS and ID verification as paid add-ons1 | SMS authentication2 |
| Signed copy saved to your own drive | Yes, when sent from Hoq PDF | not published1 | not published2 |