We have many users who are in the military, so we thought this would be a helpful and interesting chart to share!
From the National Institute of Standards and Technology: “It was a grainy image of a baby—just 5 centimeters by 5 centimeters—but it turned out to be the well from which satellite imaging, CAT scans, bar codes on packaging, desktop publishing, digital photography and a host of other imaging technologies sprang.
In 1957 NIST computer pioneer Russell Kirsch asked, "What would happen if computers could look at pictures?" and helped start a revolution in information technology. Kirsch and his colleagues at NBS, who had developed the nation's first programmable computer, the Standards Eastern Automatic Computer (SEAC), created a rotating drum scanner and programming that allowed images to be fed into it. The first image scanned was a head-and-shoulders shot of Kirsch's three-month-old son Walden.
The ghostlike black-and-white photo only measured 176 pixels on a side—a far cry from today's megapixel digital snapshots—but it would become the Adam and Eve for all computer imaging to follow. In 2003, the editors of Life magazine honored Kirsch's image by naming it one of "the 100 photographs that changed the world."
Kirsch’s son Walden—whose face helped launch the era of computerized photography—works in communications for Intel following a successful career as a television news reporter.”
I built Mini Tool https://minitool.dev – a free, browser-based PDF toolkit where files never leave your browser with 14+ tools.
The core idea: every other free PDF tool uploads your files to their servers. For contracts, medical records,or anything sensitive that's a real problem. Mini Tool processes everything locally using pdf-lib and PDF.js running in Web Workers.
Tools included:Compress, Merge, Split, Rotate, Organize, Protect, Unlock, Watermark, Sign, Repair, Images to PDF,Booklet Optimizer,Smart Print Mode,Batch Processing, Workflow Builder.
The hardest technical challenge was getting reliable PDF processing in Web Workers across different filetypes and sizes some PDFs with embedded fonts or complex image compression would crash the worker silently.
Built this solo over several months. Would love technical feedback especially on the PDF processing approach and whether the privacy angle resonates with the crowd.
Attention ! Ce site pratique des méthodes malhonnêtes. J'ai payé 1€ pour un essai d'une semaine, et ils m'ont prélevé 50€ sans aucun préavis ni mail de rappel, contrairement à tous les sites honnêtes. Le service client refuse de rembourser en se cachant derrière une 'politique de confidentialité' abusive, alors que je n'ai utilisé le service que 5 minutes. Leur seule proposition est un accès gratuit dont je ne veux pas. Je demande le remboursement immédiat de mes 50€. Fuyez ce site une arnaque !
(To be fair I got a full refund. But I still think that misleading subscriptions is not the right way to earn money. )
Since I also fell victim to this, I’m honestly surprised to see people recommending PDF Guru for professional use.
I signed up for what looked like a “free trial” and ended up being charged €49.99 — twice — without any clear warning or reminder.
If this were a serious and transparent company, it would do the basics:
I am not talking about just “nice-to-have” features! They are basic consumer protection requirements under EU law (Directive 2011/83/EU requires clear information about pricing, duration, and recurring billing before purchase).
Hiding this behind a “free trial” and then charging €49.99 without proper, clear communication is, at best, misleading.
Just sharing my experience so others don’t fall into the same trap.