Technology and useful advice
AI, computers, phones and everyday technology — clear answers without hype.
3DOBJ vs FBX vs STL vs glTF: Which 3D Format to Choose
OBJ, FBX, STL or glTF — how the main 3D formats differ and which one to pick for printing, games, film and the web. Geometry, animation, materials…
Documents & EbooksOCR: How to Turn a Scan or Photo into Text
OCR in plain English: how a computer turns a scan or photo into text, how Tesseract, ABBYY FineReader and Google differ, why 300 DPI matters, and w…
ArchivesHow to Open RAR and 7z on Your Phone
How to open RAR and 7z on your phone: working apps for Android (ZArchiver, RAR) and iPhone (Files, iZip, Documents). Step by step, free, including…
ArchivesHow to Password-Protect an Archive (and Is It Safe)
How to password-protect a ZIP, RAR or 7z archive and whether it really keeps files safe. Weak ZipCrypto vs strong AES-256, encrypting file names an…
PhotoshopWhich Format to Save In Photoshop: PSD, PSB, TIFF, PDF
Which format to save in Photoshop: PSD for layers, PSB for huge files, TIFF for print and Photoshop PDF for editable layouts. A clear guide to when…
PhotoshopPreparing for Print in Photoshop: 300 DPI, CMYK, Bleed
Preparing artwork for print in Photoshop: 300 DPI, converting to CMYK, 3–5 mm bleed and trim marks, flattening layers and exporting to PDF/X-1a or…
ArchivesHow to Shrink Files for Email
How to shrink files for email: the Gmail 25 MB limit, splitting into volumes, compressing photos and PDFs, or a cloud link. We cover what actually…
3DSTL for 3D Printing: What It Is and How to Prepare a Model
STL for 3D printing: what the format is, why the mesh must be watertight (manifold), ASCII vs binary, millimeter units, tessellation and the path t…
VideoVideo Bitrate, FPS and Resolution Made Simple
Video bitrate, FPS and resolution made simple: what they are, how they shape quality and file size, how CBR differs from VBR, and what bitrate to s…
VideoVideo Codecs H.264, H.265 and AV1 Explained
H.264, H.265 (HEVC) and AV1 — the difference between video codecs in plain English. Compression efficiency, encoding speed, licensing and compatibi…
VideoBest Video Formats for YouTube, TikTok and Telegram
Best video format for YouTube, TikTok and Telegram: exact export settings — container, codec, resolution, bitrate and the 9:16 vertical. A ready ch…
AI ToolsDeepfakes: How They're Made, How to Spot Them, Why They're Risky
Deepfakes in 2026: how AI swaps a face and voice with GANs and diffusion, how to spot a fake by its artifacts and C2PA provenance, the fraud risks,…