iPhone PDF signing guide
How to Sign a PDF on iPhone
Need to sign a PDF from your iPhone? You can use Apple Markup for quick personal signatures, or use SignHouse when you need to send, track, or collect legally valid signatures from other people.
Apple Markup is fine for one-off personal signing. SignHouse is better when you need to send, track, and collect signatures, without downloading an app.
No app install
Works in browser
Send for signature
Audit trail
Edit or convert PDFs
Collaboration
Webhooks & APIs
No app required
Send to other signers
Track completion status
Proof and audit trail
Product Method
How to sign a PDF on iPhone with SignHouse
Use this method when you want to sign right now and still have the option to send the file to others for signature in the same flow.
Do this on your iPhone
- Open SignHouse in Safari or Chrome.
- Upload your PDF.
- Draw, type, or upload your signature.
- Place it on the document.
- Download the signed PDF or send it to others for signature.
Made for real signing workflows
- Works directly in your mobile browser
- No Adobe app download required
- No Adobe account required for simple signing
- Sign and download immediately
- Upgrade path to send for signature, track, and collect proof
Native Method
How to sign a PDF on iPhone with Apple Markup
Apple Markup is great for signing a document yourself. It is limited if you need multiple signers, signing order, reminders, a signing link, or an audit trail.
Quick personal signing flow
- Open the PDF in Files, Mail, or another app.
- Tap the Markup icon.
- Tap "+" and choose Signature.
- Draw or reuse your saved signature.
- Place and resize it, then save the PDF.
Where Markup falls short
- No signing order management
- No reminders or auto-follow-up
- No status tracking for who signed
- No built-in audit trail for business compliance
- Manual sharing can be awkward for multi-party agreements
Notes Method
How to sign a PDF on iPhone with Notes
Notes can be useful for one-off edits when a PDF is already inside a note or scanned document workflow.
- Open Notes and find your PDF attachment or scanned document.
- Tap the document and open Markup.
- Add your signature from the "+" menu.
- Place and save the signature.
- Share the signed PDF from Notes.
If this file needs legal proof, multiple signers, or tracking, switch to SignHouse after signing.
File Sources
How to sign a PDF from Gmail or Files on iPhone
From email attachment
- Open the PDF attachment in Gmail.
- Tap Share and open it in your browser with SignHouse.
- Sign, place, and download instantly.
From iCloud or local storage
- Open the Files app and find your PDF.
- Choose Share and open it with SignHouse in Safari.
- Sign and export the finished file.
No-App Angle
Sign a PDF on iPhone without downloading an app
Adobe often pushes an app-first workflow. SignHouse is faster for users who want to sign now: browser based, mobile-first, and ready in seconds.
Works in browser
No app install
No Adobe account required
Mobile-first upload
Sign and download now
Upgrade to send for signature
Comparison
When to use an e-signature tool instead of Markup
| Need | Apple Markup | SignHouse |
|---|---|---|
| Sign your own PDF | Yes | Yes |
| No app required | Native iPhone feature | Yes, browser-based |
| Send to another signer | Manual sharing | Yes |
| Multiple signers | Awkward | Yes |
| Track who signed | No | Yes |
| Audit trail | No | Yes |
| Reusable templates | No | Yes |
| Business signing workflow | Limited | Yes |
Conversion Point
When should you use SignHouse instead of Markup?
Use SignHouse when you are signing documents that need shared workflows, signer accountability, or legal proof of completion.
- Contracts
- NDAs
- Lease agreements
- Offer letters
- Invoices
- Client agreements
- HR documents
- Any document that needs proof of signing
FAQ
FAQ: Sign a PDF on iPhone
Can I sign a PDF on iPhone for free?
Yes. You can use Apple Markup for basic personal signing. If you need to send, track, or collect signatures from others, use SignHouse.
Do I need to download an app to sign a PDF on iPhone?
No. You can sign in your browser with SignHouse, then download the signed PDF immediately.
Is Apple Markup legally valid for signatures?
It can be acceptable for simple cases, but it does not provide workflow tracking or a full audit trail that many business agreements require.
When should I use SignHouse instead of Markup?
Use SignHouse for contracts, NDAs, HR forms, lease agreements, and any document that requires multiple signers, reminders, tracking, or proof of signing.
Can I send a signed PDF to someone else for signature from iPhone?
Yes. With SignHouse you can sign your own document, then send it to others and track completion from the same flow.
Sign now on iPhone. Upgrade only when you need shared workflows.
Start with a browser-based signature in seconds, then move to send, track, and collect signatures with full signing proof when your process needs more control.