All processing happens locally in your browser using WebAssembly. Your files are never uploaded to any server and never used to train AI models.
Permanently bake filled form field answers into the PDF so they cannot be changed.
Flattened PDFs display consistently across all PDF viewers and printers.
Remove interactive elements to create a final, non-editable version for archiving.
LovePDFs is a completely free alternative to Adobe Acrobat, Smallpdf, and ilovepdf. Unlike other online tools that upload your files to remote servers, LovePDFs processes everything in your browser using WebAssembly technology. Your files never leave your device — not even for a second.
This makes LovePDFs the right choice for sensitive documents — contracts, medical records, financial files, government forms, and anything you wouldn't want sent to a third-party server. It's also the only major PDF tool suite that is GDPR-friendly by design, since no personal data or file content ever leaves your browser.
Upload your filled PDF form to LovePDFs Flatten tool and click Flatten PDF. All form fields are permanently embedded into the page content.
Flattening merges all form fields, annotations, and interactive layers permanently into the static page content, making the document non-editable.
Flatten the PDF to permanently lock all filled form data. The form fields become part of the page and cannot be changed in any viewer.
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