pdfFiller
Verified Oct 15, 2026 ActiveBrowser-based PDF editor and e-signature tool from airSlate, with a REST API and native iOS, Android, and Mac apps.
Listed on EffectHub ·
Pricing
- Pricing model
- Paid
- Paid options from
- $8/seat/mo
- Billing
- Per seat, monthly
Third-party trackers cite a Basic plan around $8 per user per month billed annually (higher on month-to-month billing); the official site did not surface exact figures during this check, and a 30-day free trial is offered before any charge.
Use tool ↗About pdfFiller
pdfFiller is airSlate's PDF editing and e-signature product: users edit text and fields directly on a PDF, collect signatures, merge and convert between formats, and store documents in the cloud. It targets individuals up through enterprise teams in healthcare, legal, and finance, and ships native apps for iOS, Android, and Mac alongside the web editor. Developers can also build against a documented REST API for filling, signing, and converting documents programmatically. airSlate is headquartered in Brookline, Massachusetts. Third-party pricing trackers list a Basic plan starting around $8 per user per month billed annually, though the official pricing page did not surface exact figures during this check. A 30-day free trial is offered.
- API
- Yes
- Last verified
- Oct 15, 2026
Verified sources
- Product description: PDF editing, e-signature, merge/convert, cloud storage, native iOS/Android/Mac apps, 30-day free trialpdffiller.com ↗
- A dedicated API documentation portal exists, confirming pdfFiller ships a public API productdocs.pdffiller.com ↗
Is pdfFiller legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Feb 2, 2007 (19 years ago)Registry record (RDAP), registrar GoDaddy.com, LLC, looked up Sep 6, 2026
- TLS certificate
- Issued by DigiCert Inc, valid until Feb 26, 2027Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
- Operated by
- airSlate Inc., United StatesOur research, card verified Sep 1, 2026
Pros & cons of pdfFiller
pdfFiller covers the ordinary PDF-editing-plus-signature workflow well: fill fields, merge and convert files, collect signatures, and sync across a web editor and native mobile/desktop apps. It's an established airSlate product with a real API for teams that want to automate document handling rather than click through a UI. The catch is that the official pricing page didn't surface exact figures during this check, so the entry price here comes from third-party trackers rather than the vendor directly.
Pros
- Native apps for iOS, Android, and Mac in addition to the web editor, so documents follow you across devices
- Documented REST API with OAuth 2.0 authentication for filling, signing, and converting documents programmatically
- 30-day free trial before any card is charged
Cons
- Official pricing did not surface on the site during this check — the confirmed number comes from third-party trackers, not the vendor page
- Monthly, non-annual billing carries a documented markup over the annual rate
Best for
- Teams that need PDF editing and e-signature in one subscription across devices
- Developers automating document fill/sign workflows via API
Not for
- Anyone who only occasionally needs to sign one PDF and doesn't want a subscription
- Teams already committed to a different e-signature platform's document ecosystem
Watch out: Confirm current pricing directly with airSlate before publishing a number, since the figure here is sourced secondhand.
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