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Every PDF tool you need — your files never leave your device

Edit, sign, fill forms, annotate, organize pages, merge, split, redact and export. All running locally on your device, in your browser.

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Select PDF Drag and drop or click to browse
PDF (up to 200 MB)
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No upload · No sign-in · No tracking

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Private by design

Files are processed on your device and never uploaded.

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Free, no limits

Every tool is free — no watermarks, no page caps.

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No sign-up

Open a PDF and start working in seconds.

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Works everywhere

Runs in any modern browser, on any device.

Pick a tool to get started

Click a card, drop in your PDF, and you'll land in the right view of the editor.

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AI assistant

Chat with your PDF, get summaries

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translate

AI translation

Translate side by side, page by page

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edit_note

Edit PDF

Change real text, images, links

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Annotate PDF

Highlight, underline, sticky notes

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signature

Sign PDF

Draw, type, or upload signature

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Fill PDF Form

Fill fields + design your own

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Organize Pages

Reorder, rotate, duplicate, delete

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Merge PDFs

Combine multiple PDFs into one

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Split PDF

Extract pages or split by range

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Redact PDF

Permanently remove sensitive content

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image

PDF to JPG

Render every page as an image

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table_chartSwitch with context

How LumosPDF compares with the usual online PDF tools

A quick snapshot of the core workflows people usually compare across iLovePDF, Smallpdf, and Acrobat online.

Based on public product and pricing pages checked on May 23, 2026. Competitor plans and limits can change.

FeatureLumosPDFiLovePDFSmallpdfAcrobat online
Core workflow costFreeFree, with limitsFree, with limitsMerge free, advanced tools in trial
Files stay on your deviceYes, local onlyNo, files go to their serversNo, files go to their serversNo, files go to their servers
PDF text editingIncludedIncludedPro planSign-in required
Merge PDFsIncludedIncludedIncluded, limits applyIncluded
Split PDFsIncludedIncludedIncluded, limits applyTrial or paid path
Sign / redactIncluded / includedIncluded / includedIncluded, limits applySign in / trial
PDF to JPGIncludedIncludedIncluded, limits applyTrial or paid path