Local PDF tools
Choose a PDF task and keep the document in your browser.
These are shipped Lemmafour tools. Document processing runs locally for the listed workflows; app assets may load from the site, but the PDF work happens in your browser.
Popular
Organize
Merge with more PDFs Combine this output with other PDFs into one file. Split PDF Place visual cuts or type ranges to divide one PDF into parts. Extract pages Pick pages or PDF bookmarks and save them as one new PDF. Organize PDF pages Reorder, delete, rotate, duplicate, and insert blank pages. Insert pages Insert pages from another PDF into this document. Delete pages Remove pages you no longer need. Rotate PDF pages Rotate specific pages or all pages in your document.
Edit & Sign
Open PDF editor Edit text, crop, number, fill, sign, redact, clean, inspect, and export PDFs. Add text Place text on a PDF page and export it as PDF text. Add image Place and edit images, add scoped watermarks, or extract embedded images. Sign PDF Create and place signatures, initials, dates, and checkmarks on PDF pages. Stamp PDF Add standard or dynamic stamps, including repeated page placements. Fill PDF forms Detect, fill, flatten, and resume interactive or static form work locally. Crop PDF Trim margins and set the visible page box. Clean PDF Remove repeated headers, footers, logos, stamps, or marks from a PDF you may modify. Redact PDF Permanently remove selected text and image content, or cover it with a whiteout mask.
Convert & Optimize
Privacy wedge pages
Common sensitive-document workflows
Edit a PDF without uploading itEdit PDF text without uploadingAdd text to a PDF without uploadingAdd an image to a PDF without uploadingFill a PDF form without uploadingFill a medical PDF form privatelyFill and sign a PDF contract without uploadingSign a PDF without uploadingSign an NDA on your phone without uploadingStamp a confidential PDF without uploadingRedact a PDF without uploadingRedact a payslip before sharing
Articles and explainers