Guides
Simple step-by-step guides: reduce PDF size for forms, scan with your phone, exam photo sizes, OCR, Aadhaar printing and more.
- How to reduce PDF size for online forms (100 KB, 200 KB, 500 KB) – Exam and government portals often reject PDFs that are too big. Learn why PDFs are large, how to bring them under 100 KB or 200 KB, and how to keep the text sharp.
- PDF not uploading on a government or exam portal? 7 common reasons and fixes – File too large, wrong format, password protected, damaged file or a name with special characters — the usual reasons a portal rejects your PDF, and how to fix each one.
- How to scan documents with your phone (and get a clean PDF) – Get scanner-quality PDFs from your phone camera: light, angle, edges and clean-up. No app needed — works in the browser.
- How to make a scanned PDF searchable (OCR in English and Hindi) – What OCR is, why scanned PDFs cannot be searched, and how to add a hidden text layer so Ctrl+F finds words — the pages look exactly the same.
- How to print both sides of Aadhaar (or any card) on one page – Put the front and back of Aadhaar, PAN, voter ID or a driving licence on one A4 page at real card size, ready to print or attach to a form.
- Exam form photo and signature: 9 mistakes that get applications rejected – Wrong size in KB, wrong pixels, blurry signature, wrong ink, cap or glasses — the common photo and signature mistakes in SSC, IBPS, UPSC, NEET and JEE forms.
- JPG vs PNG vs WEBP: which picture format should you use? – When to use JPG, PNG or WEBP for photos, screenshots, signatures, logos and websites — explained simply, with file size examples.
- How to combine PDF files on your phone – Join several PDFs and photos into one PDF on your phone, in the order you want — no app, no watermark.
- How to convert Word to PDF without losing formatting – Fonts change, tables move, Hindi text breaks? How to get a PDF that looks exactly like your Word document.
- How to sign a PDF without printing it – Draw your signature with a finger or mouse, type it or use a photo of it, and place it on any PDF page — no printer or scanner needed.
- What is PDF/A and when do you need it? – PDF/A is the archive version of PDF required by many courts and e-filing systems. What it changes and how to convert a normal PDF.
- How to put a password on a PDF – Lock a PDF so only people with the password can open it. Strong AES-256 encryption, done in your browser.
- KB, MB and file size explained (and how to check it on your phone) – 1 MB = 1024 KB. What KB and MB mean, how to see the size of a photo or PDF on Android, iPhone and Windows, and how to change it.
- Photo size in pixels, cm and DPI — what forms really mean – 3.5 × 4.5 cm, 200 × 230 pixels, 200 DPI — what these numbers mean and how to turn centimetres into pixels for a form.
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