FAQ

Questions, answered.

The short honest versions. No fine print, because there is no fine print.

Is it really free? What's the catch?
Really free, and there is no catch. No trial, no locked features, no subscription waiting to spring. It exists because one developer got fed up with bloated PDF readers and decided to give the fix away. If you want to say thanks, there is a coffee button. That is the entire business model.
Does it collect any data about me?
No, and not in the usual "we value your privacy" way. The app makes zero network calls. No telemetry, no accounts, no cloud, no update pings. Unplug your internet and it works exactly the same, which is the simplest privacy audit there is.
How is the whole thing under 5 MB?
It pairs Mozilla's pdf.js, the same battle-tested renderer inside Firefox, with a tiny native shell instead of bundling an entire browser. Then we stripped everything that was not about viewing documents. Small is not a limitation here. Small is the feature.
Can it edit PDFs?
No, and that is deliberate. PDF editing is a swamp of incremental updates, form state, and signature invalidation, which is exactly how the big readers got slow. No Bloat PDF does one job at full speed. For the rare heavy jobs like deep editing or complex forms, use a paid tool for the day, then come back.
Can I highlight, annotate, or sign documents?
Yes. The toolbar includes highlighting, text notes, freehand drawing, image stamps, and signatures. Mark up a document and save your annotated copy. Reading plus markup covers what most people actually do with PDFs day to day.
Does it open password-protected PDFs?
Yes. If a document is encrypted, the app asks for the password and opens it. The password is used on your machine to decrypt the file and is never sent anywhere, because nothing is ever sent anywhere.
How do I make it my default PDF viewer?
Two clicks: right-click any PDF, choose Open with, pick No Bloat PDF, and check Always. Every PDF then opens instantly with a double-click. The full walkthrough with screenshots is in this short guide, and changing your mind later takes the same two clicks.
What platforms does it run on?
Windows 10 and 11 (x64) today, as a 4.6 MB installer that needs no admin rights. A macOS build for Apple Silicon and Intel is in the works. There will never be a mobile app with an account system bolted on.
Is the download safe? Will Windows warn me?
The installer is digitally signed by verified publisher Brian Galvan through Microsoft's identity validation, and the SHA-256 checksum is published on the download page so you can verify your copy. SmartScreen is occasionally cautious with very new downloads; that fades automatically as installs accumulate.
Who is behind this?
One person: Brian Galvan, a lifelong developer and Martech provider. Not a startup, not a data company, nobody to answer to. The whole story is on the home page, and the reasoning behind the project is all over the blog.

Still reading? The download is faster.

Version 1.0.0 · Windows 10/11 (x64) · 4.6 MB · free forever

Signed, 4.6 MB, zero telemetry. It will be open before you finish this sentence.