How I Built a 100% Client-Side PDF Suite with WebAssembly and Web Workers (Zero Cloud Storage)
Have you ever stopped to think about where your files go when you use online PDF tools like Smallpdf, iLovePDF, or Adobe Online? If you are signing a sensitive NDA, merging tax returns, or compressing medical records, uploading those documents to third-party cloud servers is a massive privacy risk. Most online tools require you to hand over your data, wait in processing queues, and eventually hit paywalls or daily file limits. To solve this, I built PDFBlack: an open-source suite of 40+ PDF too…