Download Details

Version: 26.2.5.1 (latest)
File size: 615.9 MB
License: Free Trial
Security scan: VirusTotal: 52 of 52 engines say OK (0 flagged)
SHA-256 checksum: 7d5fe1e15bfb5ada62c586d700aff631d2dc634d592b6620ae6c8ab8e4c77265
Developer: Nitro
Supported OS: Windows 11, Windows 10
Installers: 64-bit (x64), Offline
Downloads: 7088
Rating: 4.8 out of 5 · 57 reviews
File name(s): nitro_pro_nls_x64.msi

Reviewed by Ahmed Madbouli
Tested on Windows 11 and 10 · October 26, 2026 · How we review

Screenshots

Nitro PDF Pro is a desktop PDF editor built for people who touch PDFs every day at work, not just once a month.

It’s aimed at business users who need real editing, form creation, and e-signatures, not casual readers who just want to open a file. It’s not free, but the trial is generous enough to actually test your workflow before paying.

What sets it apart from Adobe Acrobat is a flatter learning curve and a one-time or fixed-term license option instead of forced monthly billing.

If you edit, convert, or sign PDFs weekly, it earns its price; if you only view PDFs occasionally, skip it.

What is Nitro PDF Pro?

Nitro PDF Pro is a Windows and Mac desktop application for creating, editing, converting, and signing PDF files.

It’s built for people who treat PDFs as working documents, not static files: redlining contracts, converting scanned invoices into editable Word files, building fillable forms, or collecting e-signatures without leaving the desktop app.

The current release has a redesigned interface with cleaner toolbars and an “AI Tools” tab that centralizes newer features like auto-generated fillable forms and data extraction to spreadsheets.

Editing and markup tools

You can edit text directly inside a PDF the way you’d edit a Word document, reflowing paragraphs, changing fonts, resizing images, without exporting first.

Annotation tools cover highlighting, sticky notes, strikeouts, stamps, and freehand drawing, all with keyboard shortcuts once you learn them.

Converting PDFs to Word, Excel, and PowerPoint

This is the feature most people search for by name. Nitro converts PDFs to editable Word, Excel, or PowerPoint files while preserving layout, tables, and formatting reasonably well on text-heavy documents.

Complex layouts with mixed columns or dense tables sometimes need manual cleanup afterward, which is normal for any PDF-to-Office converter, not a Nitro-specific flaw.

OCR and scanned document support

Nitro PDF Pro includes built-in OCR (optical character recognition) for turning scanned paper documents into searchable, selectable, editable text.

The engine was recently upgraded for better accuracy on low-resolution or noisy scans and faster processing on large batches, along with improved multi-language recognition.

E-signatures and form creation

Nitro includes native e-signing, so you can sign documents yourself or send them out for signature without a separate service.

Form creation tools let you build fillable PDF forms with text fields, checkboxes, and dropdowns, and the newer AI tools can auto-detect form fields in a static PDF and convert them to fillable ones.

Security and redaction

You can password-protect files, apply permission restrictions (blocking printing or copying), and use true redaction, which permanently removes sensitive text and images rather than just covering them visually.

This matters for anyone handling legal or financial documents where a fake redaction is a liability.

Deployment for teams and businesses

For IT admins, Nitro supports MSI-based deployment through Active Directory or SCCM, which matters if you’re rolling it out across dozens or hundreds of machines rather than installing one copy at a time.

How to Download & Install

1. Download Nitro PDF Pro from GramFile by clicking the Download Button at top of this page

Installer types available

Online installer (small file, downloads components during setup)
Offline/standalone installer (full package, no internet needed mid-install)
MSI package for IT deployment via Active Directory or SCCM

System requirements

Component	Minimum	Recommended
OS	Windows 10 (64-bit) v1908+	Windows 11 (64-bit)
Processor	1.5 GHz	Multi-core 2 GHz+
RAM	4 GB	8 GB+
Disk space	1.5 GB free	3 GB+ free
Office integration	MS Office 2013/2016/2019 (32 or 64-bit)	Latest MS Office

Note: as of version 14.20, Nitro dropped support for 32-bit Windows entirely, so if you’re still on a 32-bit machine you’ll need a different tool or an OS upgrade first.

License type: Nitro PDF Pro is paid software, not freeware. It ships as a free trial, then converts to a subscription (annual or 3-year term license) once you activate with a purchased key. There’s no permanent free tier.

Activation steps

Install the trial from the GramFile download link above.
Open Nitro PDF Pro and click “Activate” from the Help menu.
Enter your license key exactly as received in your purchase email.
Restart the app if prompted; your trial converts to the full licensed version.

How to update

Nitro checks for updates automatically on launch. You can also trigger a manual check from Help > Check for Updates, which is worth doing after a fresh install.

GramFile links always point to the current stable release, but Nitro pushes patches between major versions.

Pros & Cons

What we liked

Real PDF-to-Word and Excel conversion
Built-in OCR with recent accuracy upgrade
Native e-signing, no third-party service
True redaction, not just visual covering
Flatter learning curve than Acrobat
MSI deployment for business rollouts

What we didn't like

No permanent free version
Can lag on large or complex PDFs
32-bit Windows no longer supported

Conclusion

4.8out of 5 · 57 user ratings

Nitro PDF Pro earns its price if you’re editing, converting, or signing PDFs as part of your actual job. It’s not trying to be a lightweight reader, and if that’s all you need, it’s overkill.

Where it wins against the bigger names is licensing flexibility and an interface that doesn’t require a manual to navigate. Where it loses points is performance on heavy files and the total absence of a free tier for ongoing use.

Nitro PDF Pro Vs. Others

App	Best for	Price	Platform	Standout feature
Nitro PDF Pro	Business editing and conversion	From $180/year	Windows, Mac	Native e-signing + true redaction
Adobe Acrobat Pro	Industry-standard compliance workflows	From ~$19.99/month	Windows, Mac, iOS, Android	Deepest PDF standard compliance
Foxit PDF Editor	Budget-conscious teams	From ~$139/year	Windows, Mac, Linux	Lightweight, fast on large files

FAQ

Is Nitro PDF Pro free?

No, Nitro PDF Pro is not free software. It offers a free trial period, but continued use after the trial requires a paid annual or 3-year license.

Is Nitro PDF Pro better than Adobe Acrobat?

For most business editing and conversion tasks, Nitro PDF Pro offers comparable core features at a lower price with an easier learning curve. Adobe Acrobat still leads on deep PDF standard compliance and mobile app support, so the better choice depends on whether you need those specific extras.

Does Nitro PDF Pro work on Mac?

Yes, Nitro PDF Pro is available for macOS as well as Windows, though some enterprise deployment features like MSI installers are Windows-specific.

Can Nitro PDF Pro convert PDF to Word?

Yes, Nitro PDF Pro converts PDF files to editable Word, Excel, and PowerPoint formats while preserving most of the original layout and formatting.

Does Nitro PDF Pro have OCR?

Yes, Nitro PDF Pro includes built-in OCR for converting scanned documents into searchable, editable text, with recent improvements to accuracy on low-quality scans and support for more languages.

How much does Nitro PDF Pro cost?

Nitro PDF Pro pricing starts around $180 per license per year for an annual term, with a 3-year term option around $270 per license. Exact pricing varies by plan and whether you’re buying for an individual or a team.

Does Nitro PDF Pro support 32-bit Windows?

No, as of version 14.20, Nitro PDF Pro dropped support for 32-bit operating systems entirely. You need a 64-bit version of Windows 10 or Windows 11 to install and receive updates.

Can I e-sign documents in Nitro PDF Pro without another app?

Yes, Nitro PDF Pro has native e-signature tools built in, so you can sign documents yourself or send them out for signature directly from the app without a separate e-signing subscription.

Found a problem with this download? Report an outdated version, broken link, suspicious installer or incorrect information.

Changelog - What's new in version 26.2.5.1

What's New
- New feature: Digital signature verification: Nitro PDF Pro introduces enhanced digital signature verification, with customizable validation settings, improved accuracy when verifying signed documents, and expanded support for trusted digital signatures.
- Region-aware services: Nitro PDF Pro automatically connects to Nitro Sign and Smart Tools services in your account's region to support data residency requirements.
- Security settings retained: Protected documents retain their security settings when pages are appended using Nitro PDF Creator.
Fixed Issues & Improvements
- Improved upgrade reliability: Upgrading Nitro PDF Pro will not affect other installed applications.
- Nitro starts on virtual and remote desktops: Nitro opens smoothly on shared and virtual desktops, and for administrators and remote desktop users on Windows Server 2019.
- Automatic Reconnection After Network Interruptions: Nitro keeps you signed in through short network or server interruptions. It retries automatically before asking you to sign in again.
- Printing improvements: Printing is more accurate and retains your print settings.
- Protected documents: Quick signatures can no longer be added to protected documents from the Print screen.
- Accurate printing: All page content prints as displayed on screen.
- Landscape orientation: Landscape pages retain their orientation when printing to Nitro PDF Creator.
- Correct number of copies: Nitro PDF Creator prints the number of copies selected.
- Printer selection: Renamed printers remain selected. If a printer is removed, Nitro switches to the Windows default printer.
- Print settings: Collation, custom settings, and pages per sheet work as expected.
- PDF rendering: Fixed issues that prevented certain PDFs from displaying correctly.
- Overlapping content: Fixed issues with overlapping content in PDFs generated by the ABCPdf reporting tool.Documents display fully when opened
- Improved Windows accessibility and display: Nitro respects Windows accessibility, font scaling, and dark mode settings.
- Accessibility and font scaling: Ribbon tools display correctly with Windows accessibility and text scaling settings.
- Larger text sizes: Ribbon fields display fully when Windows text size is set to 150% or higher.
- Dark mode: The Legal Notices window displays correctly in Windows dark mode.
- Network links open as expected: Links in a PDF that point to a file on a network share open as expected.
- iManage documents open in Nitro PDF Pro: Documents open from iManage as expected.
- Improved performance and stability: Improved reliability across everyday tasks, including working with large documents, saving to OneDrive, restoring Preferences, and starting Nitro.
- Large document handling: Improved stability when organizing pages, combining documents, and redacting large PDFs and fillable forms.
- Saving to OneDrive: Saving to OneDrive works reliably, even if the sign-in process is interrupted.
- Restore Preferences: Nitro opens correctly after restoring Preferences to their default settings.
- Windows stability: Fixed an issue where closing Nitro during startup could interfere with double-click functionality in Windows.
- Improved support for XFA forms
- Your pinned Nitro icon keeps working after an upgrade: The Nitro icon pinned to your taskbar keeps working after you update to a new version.
- Japanese and Ukrainian OCR works as expected: Scanned Japanese and Ukrainian documents can be made searchable once the language pack is installed.
- Keyboard shortcuts and typing work as expected: Keyboard and typing improvements across the File menu, ribbon, fields and side panels.
- The Create form button is now disabled on PDF/A files.
- Improved Recent Documents search: Results refresh correctly when switching between tabs in Recent Documents. Search results from document management systems, such as SharePoint, display file names without the .pdf extension.
- Improved trial expiration messages: Messages display correctly, including when offline. Tooltips display accurate information when the trial has expired.
- Other fixes and improvements

Nitro PDF Pro