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 read passport 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.
Soy and legumes from Qianxi and Dafang, Guizhou
Chenjiao douchi ba are fermented soybean cakes from Qianxi and Dafang in Guizhou, made by traditional methods and ripened for a long time in a cellar. Qianxi cakes are fermented by Bacillus, Dafang cakes by Mucor moulds and bacteria together. They are eaten as an appetizer.
A short entry: the sources we found record only what is said here about Chenjiao douchi ba itself. Its own sources do not record how it is made, so the steps and scenes below are those of Shuidouchi (water douchi; natto-like Chinese douchi), the closest documented soy and legumes ferment, shown as a guide to the method, not as a record of Chenjiao douchi ba.
| soybeans | |
| shaped into cakes | |
| Starter | spontaneous |
Total time across the steps of Shuidouchi (water douchi; natto-like Chinese douchi): 9.5 days – 18 days
What changes: Yellow soybeans soak overnight and swell
Output: soaked beans.
Microbes at work in this step
Not documented for this step.
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
Chenjiao douchi ba are fermented soybean cakes from Qianxi and Dafang in Guizhou, made by traditional methods and ripened for a long time in a cellar. Qianxi cakes are fermented by Bacillus, Dafang cakes by Mucor moulds and bacteria together. They are eaten as an appetizer. Qianxi: Bacillus pantothenticus, B. alvei and B. firmus and Dafang: Mucor javanicus, M. rouxianus and M. racemosus with B. firmus and Gram-positive non-sporing rods do most of the fermenting.
Unlike loose douchi, the beans are made into cakes and ripened in a cellar, and the two counties use different fermenters, Bacillus in Qianxi and Mucor with Bacillus in Dafang.
Every number is labelled with how it is known. How this atlas is made
Studied in the mid-2000s by Qin and co-workers, who screened 12 Bacillus strains from 40 isolates as candidate pure starters.
