How-to
How to send a document for signature from a phone
You don't need a laptop to send something for signature. Here is how uploading, placing fields, and sending works entirely from a phone browser.
Updated · 3 min read
No app required
Signavos runs in the phone's browser, not a separate app. On iOS that means Safari or Chrome; on Android, Chrome or your default browser. Sign in the same way you would on desktop — a one-time email code, a magic link, or Google — and you land on the same dashboard, laid out for a smaller screen.
Uploading a PDF from your phone
The upload button on the dashboard opens your phone's normal file picker, so you can pull a PDF from wherever it already lives:
- iOS: the Files app, iCloud Drive, or a cloud app like Google Drive or Dropbox if it's installed.
- Android: the Files app or any cloud storage app you use.
- Either: if you only have a paper document, use your phone's built-in document scanner (in the Notes app on iOS, or Google Drive's scan feature on Android) to produce a clean PDF before uploading — a photo saved as a JPEG will be rejected, since only PDF is supported.
The file is limited to 40 MB, which covers essentially any scanned or exported document short of a very long one with embedded images.
Placing fields with touch
Once uploaded, you drag fields — signature, date, name, initials, text, checkbox — onto the document the same way you would with a mouse, just with a finger. Turning the phone to landscape gives more room to see the page and place fields precisely, especially on a densely formatted PDF.
Everything you place is validated the same way as on desktop, and preparing a document — placing fields, saving a draft — costs nothing. The credit is only debited when you actually send.
What the recipient sees on their phone
The signing experience is built mobile-first, meaning it was designed for a phone screen and works just as well on a laptop, not the other way around. Your recipient gets the same email link regardless of device, opens it in their own phone browser, and signs by drawing with a finger, typing their name, or uploading a signature image. No account, no app, on either side. See how to sign a document without creating an account for their perspective in full.
A few practical tips
- Convert scans and photos to PDF before uploading — Signavos only accepts PDF.
- Use landscape orientation when placing fields on a form with a lot of text; portrait is fine for reviewing and signing.
- If you're sending on a weak connection, upload once and wait for confirmation before placing fields — re-uploading a large file repeatedly wastes time, not credits (nothing is charged until send).
Signavos runs in your phone's browser, so you can send a PDF for e-signature from your phone without installing an app or paying monthly.
Frequently asked questions
- Do I need to install an app to send or sign on mobile?
- No. Both sending and signing happen entirely in the phone's browser.
- Can I upload a photo of a document instead of a PDF?
- No — only PDF files are accepted, up to 40 MB. Use your phone's built-in scanner feature to turn a photo into a PDF first.
- Is placing fields harder on a small screen?
- It's more precise in landscape orientation. For a form with many fields close together, zooming in before placing each one helps.
- Does the recipient need a specific phone or browser?
- No — any modern mobile browser on iOS or Android works. There's nothing to install on their side either.
Send your next document without a subscription.
Upload a PDF, place the fields, send. Your recipient signs without an account and you pay per signature — nothing renews.
Start paying per signature