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.
Cheese from Iran, Afghanistan and Central Asia
A dark, very sour dried dairy product made by boiling down the sour whey left from yogurt and doogh (buttermilk) until thick, then drying it until brittle. Its low pH from lactic acid, heating, low water activity and salt keep it stable. Iran has a national standard for it, ISIRI 13299.
Made by boiling down and drying the sour whey left from yogurt and buttermilk, and noted for its very sour taste, firm chewy texture and low pH from high lactic acid.
| sour whey from yogurt and doogh |
Total time across the steps of Dried sour-milk curd family (qurut, aaruul, kashk, chhurpi): 13 days – 20 days
What changes: Milk sours into yoghurt or sour milk
Output: sour milk or yoghurt.
Microbes at work in this step
lactic bacteria acidify the milk
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
A dark, very sour dried dairy product made by boiling down the sour whey left from yogurt and doogh (buttermilk) until thick, then drying it until brittle. Its low pH from lactic acid, heating, low water activity and salt keep it stable. Iran has a national standard for it, ISIRI 13299. Made in 4 steps over 13 days – 20 days. The longest step, shape and sun-dry, takes 10–15 days. Salt is up to 3 %.
| Main step | 10–15 daysReported[oskenbay2016] | Shape and sun-dry |
|---|---|---|
| Temperature | 40–45 °CReported[oskenbay2016] | Sour the milk into yoghurt or sour milk |
| Salt | up to 3 %Reported[oskenbay2016] | Press, salt and hang the curd |
| Acidity | pH 4.1–4.3Measured[kalibekkyzy2026] | Shape and sun-dry |
Iranian standard ISIRI 13299 sets its limits. In a Tehran study, no certified brand carried coliforms, E. coli or coagulase-positive S. aureus, but one traditional sample had too many moulds and yeasts.
Hazards the sources name: Escherichia coli in 7% and coliforms in 28% of 40 traditional samples; Salmonella and Staphylococcus aureus were not found.
Every number is labelled with how it is known. How this atlas is made
