PDF guides

How to Compress a PDF to Under 100 KB (for Exam and Job Forms) — Step-by-step: get a PDF under 100 KB, 200 KB or any size an online form asks for, without uploading it anywhere.
How to Redact Aadhaar, PAN and Phone Numbers from a PDF — Permanently black out an Aadhaar number, PAN or phone number in a PDF before you share it. Real redaction, not a black box on top.
How to Merge PDF Files into One (Free, No Upload) — Combine several PDFs into a single document in the order you want, free and without sending your files to a server.
How to Scan a Document to PDF with Your Phone (No App) — Turn photos of paper pages into one clean PDF using only your phone's browser. No app, no account.
How to Make a Scanned PDF Searchable (OCR in Hindi and English) — Use OCR to turn a scanned PDF into one you can search and copy from, in English, Hindi and nine other Indian languages.