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    Privacy•6 min read

    PDF Tools That Don't Upload Your Files: iLovePDF vs Smallpdf vs PDF24 vs PDF Perfect (2026)

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    Most free PDF websites process your file on their servers and delete it later. That's often fine, but not for every document. Here's what each popular tool says it does with your file, and how to check any site yourself.

    See How PDF Perfect Works: free, no upload

    Short answer: iLovePDF, Smallpdf and PDF24's online tools process files on their own servers and delete them after a set time, according to their own policies. PDF Perfect processes files in your browser, so they're never uploaded. Server-based tools can do more (OCR, Word and Excel conversions); browser-only tools keep sensitive documents on your device.

    The Comparison

    The retention wording below is quoted from each company's own published pages, checked on 26 September 2026. Policies change, so follow the links to read the current version.

    • iLovePDF: files are processed on iLovePDF's servers. Its FAQ (ilovepdf.com/help/faq) says: "We just keep them for a maximum of 2 hours so you can download them. Right after, they are completely removed forever from our servers." No account is needed for basic tools.
    • Smallpdf: files are processed on Smallpdf's servers. Its privacy notice (smallpdf.com/privacy) says that without an account "we will generally aim to delete User Files within a reasonable period of time after the last time they were opened", and with an account "we delete User Files within one hour unless you save them to your file storage."
    • PDF24 (online tools): files are processed on PDF24's servers. Its FAQ (tools.pdf24.org/en/faq) says "All files are automatically deleted from the processing server within one hour after processing." PDF24 also offers a free desktop app, PDF24 Creator, that works offline.
    • PDF Perfect: files are processed in your browser and never uploaded, so there is nothing to retain. No account is needed.

    How to Test Any PDF Site Yourself

    1. Open the tool and your browser's developer tools (right-click, Inspect, then the Network tab).
    2. Clear the list, then process a PDF of a known size, say 5 MB.
    3. Look for a request of roughly that size going out. If you see one, the file was uploaded.
    4. Or turn off Wi-Fi after the page loads. If the tool still works, it's processing on your device.

    Our How It Works page walks through both tests in Chrome, Firefox and Safari.

    When Server-Based Tools Are Fine

    Server tools are a reasonable choice for documents that aren't sensitive: a public brochure, a menu, lecture slides. They're also where you'll find features that are hard to do in a browser, like OCR on scanned pages or converting a PDF to an editable Word file. iLovePDF, Smallpdf and PDF24 all offer far more tools than PDF Perfect does today.

    When to Use a Browser-Only Tool

    • Contracts, NDAs and anything under a confidentiality agreement.
    • Bank statements, tax returns, payslips and invoices.
    • Medical records, prescriptions and insurance claims.
    • Scans of passports, ID cards and driving licences.
    • Work documents your employer doesn't allow on third-party services.

    Frequently asked questions

    iLovePDF says it keeps uploaded files for a maximum of 2 hours and then removes them from its servers. For non-sensitive files that's usually acceptable. For confidential documents, a tool that doesn't upload at all removes the risk.

    Yes. Smallpdf processes files on its servers and, according to its privacy notice, deletes them after a period that depends on whether you have an account.

    Browser-based tools such as PDF Perfect process files on your device, and desktop apps such as PDF24 Creator work offline. You can check any website with the Network-tab test described above.

    OCR, converting PDFs to and from Word, Excel or images, and many other specialised tools. PDF Perfect focuses on compressing, merging, splitting, editing, rotating and extracting pages privately.

    Ready to try it yourself?

    Free, private, and no sign-up — everything runs in your browser.

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