True redaction removes the text and images from the file — not a black box on top. Plus real in-place text editing, fill + sign, reorder pages, and OCR.
LaunchEdit text in place, sign, redact, fill forms, and reorganize PDF files in your browser — all on your device. No upload, no subscription.
Drop two versions of a contract or drawing set. Moved notes read as moves, changed values light up digit by digit, and hidden text is named.
LaunchSide-by-side or overlay PDF diff driven by one engine that reads each file into a structured model — text, vector geometry, images, form fields, annotations — and compares the models. Moves show as moves, edits show only where they happened, and any PDF type works without picking a mode.
Drop a Gerber ZIP, an ODB++ .tgz or an IPC-2581 .xml and inspect every layer — compare revisions, snap-to-pad measure, run DRC and preview the board in 3D.
LaunchOpen Gerber, Excellon, ODB++ and IPC-2581 PCB files. Inspect layers, measure traces, run DRC, export to PNG / SVG / DXF.
Open a .step / .stp part and it measures itself: volume, thinnest wall, draft and undercuts on load, and a hole list with a BOM in one click. Measure, section, export STL.
LaunchOpen a STEP / STP part and it measures itself — volume, thinnest wall, draft and undercut checks on load, plus hole detection with a BOM. Measure, section, export STL. Rust + WASM B-rep kernel, runs in your browser.
Compress, merge, split, convert, and manipulate PDF files.
Resize, compress, convert, and transform images.
Convert, compress, and cut audio and video — MP3, WAV, MP4, WebM, Opus — all in your browser, nothing uploads.
Simulate a canning process down to its F0 sterilizing value.
Encrypt files, share encrypted notes as links, and inspect tokens, IDs, and Windows event logs.
Analyze packet captures, move files between devices, and console into network gear — nothing uploads.
Scan receipts into an expense ledger — your receipts and spending stay on your device.
View, measure, and repair CAD and 3D files — STEP, STL, OBJ, PLY, GLB, 3MF, DXF, and Gerber — right in your browser. Nothing uploads.
Annotate a PDF online for free. Highlight, underline, strike through, draw, add arrows, boxes, text and sticky notes on any page, then download the marked-up copy.
Drop your PDF on this page, pick a tool such as Highlight or Note, and mark the page. Click Save and Download to get the annotated copy. There is no account to create and nothing to install, and the file is not sent to a server.
Highlights, underlines, strikethroughs, freehand drawing, arrows, rectangles, typed text and sticky notes. Each mark can have its own colour and opacity, and lines, arrows and boxes have a line width from 1 to 12 pixels.
No. Marks are drawn onto the pages of the saved copy, not added as comments that a PDF reader can edit or delete, so they look the same everywhere. Before you save, Undo removes the last mark and Clear All removes every mark. Keep your original file if you may need a clean copy.
No. The original text and images stay as they are, and existing bookmarks, form fields and comments are kept. Your marks are added on top of each page.
Yes. The editor runs in a mobile browser and you can draw and highlight with your finger or a stylus.
Text and notes are written with the standard Helvetica font, so use Latin letters, numbers and common punctuation.
Not directly. Remove the password with Unlock PDF first, then annotate the copy.
Up to 100 MB per file.
