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PDFluent
For developers →Download
Public beta · macOS 11+ · Windows 10+

Your PDFs.
Private by default.

A native desktop editor. Everything runs locally. Free for everyone — including at work.

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Sample document · Q4 2025 Investor Letter

Meridian Partners LP

FISCAL YEAR 2025 · PAGE 3 OF 12
Performance Overview

Net asset value increased 18.4% in the fourth quarter, bringing full-year returns to 31.2% versus the benchmark's 14.7%.

Strong performance in technology and infrastructure positions drove the outperformance. The fund maintained its defensive tilt throughout the period.

Portfolio Highlights

Holdings in renewable infrastructure contributed 7.4% to absolute returns. The fund maintained its 22% allocation to European mid-caps throughout Q4.

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Probably the safest PDF editor in the world.

Built in pure Rust. The entire class of memory-safety bugs is gone by construction — not patched, not mitigated. Gone.

~70%
of severe security bugs are memory-safety flaws
Microsoft Security Response Center (2019) · Google Chrome Security (2020)

No C. No C++. No third-party PDF engine. Pure Rust, from scratch.

0bytes

uploaded. Ever. To anyone.

No cloud
Everything stays on your machine.
No account
Download and use. Nothing to sign up for.
No telemetry
We literally cannot see your data.
Runs on your device. 0 bytes uploaded.
Features

One desktop app.
Everything you actually do with a PDF.

01 — Read

Instant. Even your heaviest files.

Full-text search. ⌘K command palette. Page thumbnails. All local.

02 — Edit

Change text directly in your PDF.

Edit fonts, sizes, colors. Add shapes. No round-trip to a cloud.

03 — Redact

GDPR-proof redaction. Actually deleted.

Permanently erase SSNs, IBANs, names. Strip hidden metadata in one click.

04 — Sign

PAdES digital signatures. Cryptographically tamper-evident.

PAdES (PDF Advanced Electronic Signatures) is the ETSI/EU standard. Certificate-based, not just an image — it seals the document permanently.

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PDFluent
ToolsEditConvertE-Sign
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Pages
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PDF Forms

Fill standard PDF forms.

AcroForm PDFs — government forms, bank documents, contracts — fully supported. Every field type, locally, no account needed.

betaXFA (XML Forms Architecture) forms also supported — experimental, improving with every release.
Pricing

Free for you.
Free at work, too.

What PDFluent costs — Editor
€0for everyone
Including commercial use — no seats, no subscription
Account requiredNo
File storage100% local
PlatformsmacOS · Windows
AcroForm supportFull
Install size~12 MB (macOS)
Adobe Acrobat Pro — for comparison
~€240/yr
Teams: ~€288 / yr per user
Account requiredYes
File storageCloud sync
PlatformsmacOS · Windows
AcroForm supportFull
Install sizeUp to 4.5 GB
Download PDFluent — it's freeFree forever, including commercial use. No credit card needed.
For developers

Building software? The same Rust engine is available as a developer SDK (software development kit) — Rust, WebAssembly, Node.js, Python, .NET, Java.

Explore the SDK
FAQ

Questions, answered.

Is PDFluent really free, including for commercial use?
Yes. The desktop editor is free for everyone, including commercial use at work — no seats, no subscription, no account. Only the separately-licensed developer SDK is a paid product.
Does PDFluent upload my files to the cloud?
No. Everything runs on your machine. There is no account, no cloud storage, and no telemetry — the files you open never leave your device.
Which platforms does PDFluent run on?
macOS 11 (Big Sur) and later, on both Intel and Apple Silicon, and Windows 10 or 11 (64-bit).
Is PDFluent secure?
The engine is written in memory-safe Rust, which eliminates the memory-safety bugs behind roughly 70% of severe security vulnerabilities (Microsoft 2019, Google 2020). It ships no document-JavaScript engine and ignores automatic actions in PDFs.
Can PDFluent open XFA forms?
Yes. It renders and fills legacy XFA (XML Forms Architecture) forms that many readers refuse — this support is experimental and improving with each release. Standard AcroForm PDFs are fully supported.
Is there a developer SDK?
Yes. The same Rust engine ships as a PDF SDK (software development kit) with bindings for Rust, Python, Node.js, .NET, Java, and WebAssembly. It is licensed separately from the editor — from €699 (perpetual licence), with a free 30-day evaluation.

Download.
Free.
No account.

macOS 11+ · Windows 10+

Free for everyone — including at work.