pdfpix vs CleverPDF

CleverPDF advertises forty four permanently free online PDF tools. What its site does not say anywhere is which of them run in your browser and which upload the file to its servers. Until a vendor states that, assume the upload. pdfpix states it for every tool: none of them upload anything.

The claim and the missing detail

CleverPDF's front page describes forty four powerful and permanently free online PDF tools. Checked 20 August 2026. Free and plentiful is the whole pitch, and on that pitch it delivers more tools than this site has.

What it does not publish is a per-tool statement of where the work happens. Some browser tool suites do run part of their set locally. This page will not claim CleverPDF does, because nothing on CleverPDF's site says so, and a privacy claim without a source is worth nothing.

Why the distinction matters

A tool that runs in the tab and a tool that posts your file to a server look identical from the outside. Same page, same button, same download. The difference only shows up in what happened to the document, and by then it has happened.

So the rule is simple: if the site does not say, assume it uploads. That is not an accusation against CleverPDF, it is the only safe default for any tool whose vendor has not written the answer down.

What pdfpix states and why it can

Every tool on this site runs inside the browser tab. There is no upload endpoint for document bytes, so the claim is structural rather than a policy that could change. How it works describes the boundary in detail.

The analytics are the only thing that leaves, and they carry route names, event names, outcomes and counts. Never document bytes, file names, text, metadata, previews or the values you type. The privacy page lists the whole set.

Tool count against tool depth

Forty four against thirty-one is closer than the headline suggests, and what is missing here is real: broad conversion in both directions, text recognition and form handling. If you need those, CleverPDF has them and pdfpix does not.

The thirty-one go deeper on file handling. Page work with zero-padded split names, rotation and crop boxes that hide rather than delete, redaction that destroys content and then checks it is gone, and a compressor that takes an exact byte target.

Deciding

A format conversion on a document you would not mind a stranger reading: CleverPDF, and any of the other free suites. A document where the answer to who else has a copy needs to be nobody: a tool that states its boundary, which means pdfpix here or a desktop application.

PDF Candy publishes a two hour retention window, which is at least an answer, and the converter roundup covers the format work properly.

CleverPDF and pdfpix, side by side
CleverPDFpdfpix
Tools CleverPDF 44 Advertised as permanently free. pdfpix 31 File handling only.
Says where each tool runs CleverPDF No. Not stated Its site does not say which tools upload and which do not. pdfpix Yes. Stated per tool Every one runs in the browser tab.
Cost CleverPDF Free pdfpix Free No account needed.
Not available CleverPDF No. A statement of what leaves pdfpix No. The long tail of niche tools

The short answer

When a vendor does not say where the work happens, assume the upload and act accordingly. For a public document that is fine. For anything you would not email, it is the whole decision.

Questions people ask

Do CleverPDF tools run in my browser?
Its site does not say. On 20 August 2026 CleverPDF advertised forty four permanently free online tools without stating, per tool, where the processing happens. When a vendor does not publish that, assume the file is uploaded.
How can I tell whether a PDF tool uploads my file?
Look for a per-tool statement from the vendor, not a general privacy paragraph. Absent that, a progress bar that depends on your connection speed and a queue message are both signs of a server. When in doubt, assume upload.
How many tools does pdfpix have?
Thirty-one, all running in the browser tab: size, page order, rotation and crop, images to PDF, PDF to images, passwords, stamps, redaction, metadata scanning and repair. Fewer than most free suites, and every one of them verifies its own output.
What does pdfpix send to its analytics?
Route names, event names, outcomes and counts, through one boundary. Never document bytes, file names, document text, metadata values, previews or anything you type into a field. The privacy page lists the whole set.

Where to go next