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Nitro PDF Pro

Commercial PDF editor and eSign suite for Windows, Mac and iOS.

Jobs Edit Sign Convert OCR Protect

Where your files are processed

Mixed — depends on version and feature

The vendor's own documentation separates them. On the device: Nitro PDF Pro installed on Windows and macOS. On their servers: Smart Tools online services. A single answer for the whole product would be wrong for one of them.

It depends on the feature. The installed editor works on files on the machine, and that is distinct from the online services: the current documentation places Smart Redact, extraction and PDF chat inside Smart Tools, and the guide describes those as online services requiring a Nitro account with admin-controlled access. An absolute no-server badge cannot describe both, so the processing state is recorded per feature and AI redaction is not described as exclusively a separate application, nor is every desktop licence treated as including every online service.

What it does

Nitro PDF Pro is a commercial desktop PDF editor and e-signing product for Windows, macOS and iOS, sold as a subscription or licence. It handles editing, conversion, annotation, OCR, securing and signing, and connects to Microsoft 365, Salesforce, SharePoint and cloud storage. It is the individual-product front end of a wider Nitro platform whose bulk e-signing, AI redaction and automation capabilities are sold separately.

Best for: Businesses and professionals who want one commercially supported PDF editor with e-signing and Microsoft 365 or SharePoint integration rather than a free tool.

Worth knowing: There is no free tier, only a 14-day trial, so it is a recurring or licence cost. The higher-value capabilities — bulk e-signing, AI redaction, automation and APIs — live in other Nitro products, and we could not read current prices from the vendor's pricing page. Applied redaction is vendor-documented content removal with untested output, and metadata removal is a separate operation rather than part of the same claim. The desktop record no longer carries an HTTP API entry, because no PDF Pro specific endpoint is documented; the separately scoped developer products are linked instead.

Details, and where each comes from

Vendor statements, our own reading of their pages, and the things nobody has established yet, each answered separately. Where we have not confirmed something it says so rather than guessing, and a row nobody has established is greyed out.

Versions covered
Windows · macOS · iOS
Website
gonitro.com
Requires an account
Yes
Free tier
No
Watermark on trial output
Not verified
Maximum file size
Not verified
Batch processing
Not verified
Data residency
Not verified
Open source
No
Self-hostable
No
Licence
proprietary
Redaction
Removes the content
Programmatic access
None
Last availability check
Responded in 99 ms 16 October 2026

Checked automatically by our own runner, not reported by the vendor. 100% of our last 30 checks got a response.

What the redaction verdict rests on

From the vendor's own documentation, read 22 September 2026. Not tested by us.

“With intuitive tools, you maintain complete control to review, adjust, and publish documents with permanent, untraceable redactions.”

What that does not establish: The vendor’s product page, not a test we ran — and not the step-by-step guidance, which is the more specific source and describes the mechanism differently by platform. The Windows documentation states permanent removal explicitly, while the Mac documentation says only that text can be blocked out or erased. Read this against the platform you actually use.

https://www.gonitro.com/pdf

What the vendor says

Claims are labelled rather than repeated as fact. Where we have checked something ourselves, it says so and shows when. Checked means we read the vendor's own page and it says what we recorded — not that we tested the behaviour, unless the note says we did.

  • “Edit, convert, secure, and sign PDF with annotation, OCR, and more. Compatible with Mac, Windows, and iOS. Try free for 14 days.”

    Checked by us — the source only partly supports this Read 21 September 2026

    Partial, and for a reason the campaign has not recorded before: the recorded quotation is stale rather than wrong. The page no longer carries "Edit, convert, secure, and sign PDF with annotation, OCR, and more". Its strapline now reads "Edit, convert, secure, and automate with the AI-powered PDF solution that includes everything teams need for faster, smarter work. Try free for 14 days. No credit card required, no hidden fees." Of the claim's three components, two survive: the 14-day trial is verbatim, and the platform list appears as "across Windows, Mac, and iOS" against the claim's "Mac, Windows, and iOS". The third does not survive in any form — OCR and annotation are named nowhere on the page, and "sign" is replaced by "automate". So the source supports part of the claim and no longer carries the rest. This is a defect in our record rather than a contradiction by the vendor, and it is the first stale quotation found in this campaign, which is itself the finding: claims sourced from marketing straplines change without notice, and the index has no mechanism that would notice. Recorded as partial rather than refuted because the page does not say otherwise about OCR — it simply no longer says this.

    Standing: Re-read and matched byte for byte

    Check it yourself: the source, the SHA-256, and how we checked
    Read
    https://www.gonitro.com/pdf
    From
    the text a browser renders
    SHA-256
    01498d7ac3db6f8bcbeff444b1d4addb16a7b57f9e868e446a445d31247144c4

    How we checked: https://www.gonitro.com/pdf rendered in headless Chrome with scripts/render-page.mjs on 2026-09-21 (visible text 11397 bytes) and the claim checked against that text, including a search for each of the claim's components separately. sourceHash is the SHA-256 of the rendered text.

    What this hash proves, and what it does not

Each claim is quoted from the vendor's own pages. This section describes what we have and have not checked — it is not a judgement about anyone.

Sponsorship is distribution, not an endorsement or a promise of search rankings, AI citations, traffic, or sales. This listing is a free entry, compiled from published sources.

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Related reading

How this record was put together

Editorial review.
No editor has signed this record off. That is not the same as nothing having been checked, and the lines below say what has.
Source reading.
1 claim taken from the vendor's own pages, read between 21 September 2026 and 21 September 2026.
Website availability.
The vendor's site was last checked on 16 October 2026.
Behaviour testing.
We ran this ourselves. The file handling was watched directly.

Sources: gonitro.com pages (home, pdf, pricing, integrations, technical requirements, plan guide, compare, security-compliance, FAQ, best-pdf-editors, legal/privacy-policy). Vendor claims, not independently verified.

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