FileDagadu Blog
Short, practical guides for images, PDFs, exam forms, everyday calculators and developer tools — each with a free tool you can use right away.
2 min read
How to Edit a PDF Online for Free: Add Text, Whiteout and Sign
Fix a typo, hide a line, add a signature or a picture to a PDF without installing anything. Your file stays on your device.
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How to Convert a PDF Bank Statement or Invoice to Excel
Pull the table out of a PDF into a spreadsheet so you can sort, add up and filter it. Free, and it runs in your browser.
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PPT to PDF and PDF to PPT: Free Converters That Run in Your Browser
Turn a PowerPoint into a PDF to share, or a PDF into slides you can edit. What works, what does not, and which mode to pick.
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How to Compare Two PDFs and See What Changed
Find added, removed and changed text between two versions of a contract, a quotation or a report. Free and private.
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How to Print 2, 4 or 6 PDF Pages on One Sheet and Save Paper
Put several pages on each sheet before you print. Good for notes, slides and long documents.
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How to Convert Word to PDF for Free (Without Uploading Your File)
Turn a .docx file into a PDF in your browser, what is kept, and how to make a resume PDF that applicant tracking systems can read.
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How to Convert Excel to PDF Free: Fit a Wide Sheet on One Page
Convert an .xlsx spreadsheet to PDF in your browser, choose which sheets to include, and stop wide tables from splitting across pages.
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How to Convert HTML to PDF for Free (File or Pasted Code)
Turn an HTML file or pasted HTML code into a small, searchable PDF in your browser, and learn which HTML and CSS features are supported.
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How to Convert PDF to Word for Free (Without Uploading Your File)
Convert a PDF to an editable Word file in your browser, what you can expect from the result, and what to do with scanned PDFs.
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How to Extract Text from an Image or Scanned PDF (Free OCR)
Turn photos, screenshots and scanned PDFs into editable, copyable text with free in-browser OCR — in English, Hindi and more.
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How to Sign a PDF Online Free (and Create a Signature Image)
Add your signature to a PDF without printing or scanning. Draw, type or upload a signature, place it on the page and download.
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How to Password-Protect a PDF (and Unlock One You Have the Password For)
Encrypt a PDF with AES, restrict printing and copying, or remove protection from a PDF you own — free and in your browser.
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How to Split a PDF, Extract Pages or Delete Pages (Free)
Pull out only the pages you need, split a big PDF into smaller files or delete unwanted pages — all in your browser.
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How to Compress a PDF for Email and Upload Forms (to 100KB, 200KB, 500KB)
Shrink a PDF to meet email limits and application-form size caps. Keep text selectable or hit an exact KB target.
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How to Convert Images (JPG, PNG) to PDF — Single or Multiple Photos
Turn photos, scans and screenshots into one clean PDF. Choose page size, order the images and download — free and private.
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How to Merge PDF Files Online for Free (No Software, No Upload)
Combine multiple PDFs into one document in seconds. Reorder pages, keep quality and merge privately in your browser.
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2 min read
How to Print Aadhaar Card Front and Back on One A4 Page
Make a clean copy of your Aadhaar, PAN or licence with both sides on one page, at real size, without going to a cyber cafe.
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How to Mask Your Aadhaar Number Before Sharing (Free)
Hide the first 8 digits of your Aadhaar and add a “for this use only” line, so a shared copy cannot be misused.
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How to Resize a Photo in cm or mm for Forms and Print
Forms ask for 3.5 × 4.5 cm, shops print 4 × 6 inch. Here is how to set an exact size without guessing pixels.
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2 min read
Rent Agreement Format in India: 11-Month Draft and Clauses to Include
What a rental agreement must contain, why most are made for 11 months, and a free draft you can fill in and download as PDF.
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Affidavit Format in India: Name Change, Address Proof and Lost Document
How an affidavit is structured, and free formats for the most common uses.
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Power of Attorney Format: General vs Special, and What to Write
The difference between a general and a special power of attorney, and a free draft for each.
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Salary Certificate Format for Bank Loan and Visa (Free Sample)
What to include in a salary certificate and who signs it, with a free template.
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2 min read
How to Make Diwali and Festival Wishes Images for WhatsApp (Free, in Hindi)
Make a personal greeting card with your name and photo in one minute, and send it on WhatsApp or post it as a status.
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Turn a Photo into a Pencil Sketch or Cartoon Online (No App, Free)
Make a pencil drawing, colour sketch, cartoon or pop art from any photo, right in your browser.
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Free Wedding and Griha Pravesh Invitation Card Maker (Hindi and English)
Make an invitation card to send on WhatsApp or print, for a wedding, birthday, griha pravesh or baby shower.
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Resume
2 min read
Fresher Resume Format for India: What to Include (With Free Template)
How to write a one-page resume when you have no work experience: what to put first, what to leave out, and a free sample to copy.
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Which Resume Template Should You Use? (ATS-Friendly Designs Explained)
Classic, modern, minimal, compact, bold or sidebar: what each resume design is good for, and which ones online job portals read well.
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Letters
2 min read
Leave Application Format for School and Office (With Samples)
How to write a leave application: the parts it needs, how to word it, and free samples for school, sick leave and family functions.
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Resignation Letter Format: How to Resign Politely (With Samples)
How to write a resignation letter, how to state your notice period and last working day, and free samples you can edit.
Read guideFinance & Calculators
2 min read
Income Tax Slabs for FY 2026-27 (AY 2027-28): Old vs New Regime
The new and old regime slabs, the 87A rebate, standard deduction, surcharge and cess for FY 2026-27, with a worked example and a free calculator.
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How to Calculate HRA Exemption: Formula, Example and Rent Receipts
Learn the least-of-three HRA formula, see a worked example, and know which documents you need to claim HRA.
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Old vs New Tax Regime: Which Is Better for You? (With Break-even Numbers)
How to choose between the old and new tax regime in FY 2026-27, with real break-even figures, examples and a free calculator.
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HRA Metro Cities List: 8 Cities at 50% From FY 2026-27
Which cities get the 50% HRA limit from FY 2026-27, what changed for Bengaluru, Hyderabad, Pune and Ahmedabad, and what it means for your tax.
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Rent Receipt Format for HRA: What to Write and What You Need
A simple rent receipt format with every detail an employer asks for, plus tips on PAN, signatures and payment proof.
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How to Calculate Percentage: Formulas, Percentage Change and Discounts
Easy percentage formulas with examples — find X% of a number, percentage increase or decrease, marks percentage and discounts.
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How to Calculate Age from Date of Birth (Years, Months and Days)
Work out exact age in years, months and days — including leap years — for forms, eligibility checks and exam cut-off dates.
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How to Calculate SIP Returns: Formula, Example and Step-Up SIP
See how a monthly SIP grows over time with the SIP formula, a worked example and a free calculator including step-up and inflation.
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How to Calculate EMI for a Home, Car or Personal Loan (Formula + Example)
Understand the EMI formula, see a worked example, and learn how tenure and interest rate change what you pay — with a free EMI calculator.
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How to Calculate GST: Add or Remove GST with Formulas and Examples
Learn the GST formulas to add GST to a price or extract it from an inclusive price, with CGST/SGST/IGST examples and a free calculator.
Read guideExam & Forms
2 min read
Why Exam Photos Get Rejected — and How to Check Yours Before Uploading
The most common reasons photos are rejected on exam and application forms, and a free checker that tests yours in seconds.
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How to Create a UPI QR Code for Payments (Free, With or Without Amount)
Make a personalised UPI QR code for your shop, freelance work or invoices. Add your UPI ID, name, amount and note, then download or print.
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How to Make a Passport Size Photo at Home (35×45 mm, White Background)
Create a print-ready passport size photo from a selfie: crop to size, whiten the background and get a 4×6 or A4 sheet to print.
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How to Resize Photo and Signature for Exam Forms (NEET, JEE, SSC, Bank)
Meet exact pixel and KB limits for exam application photos and signatures — without a studio. A step-by-step guide with common sizes.
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2 min read
How to Convert an Image of a Table to Excel (Free, with Hindi Support)
Turn a photo of a bill, marksheet or table into an editable Excel or CSV file — no retyping. Includes tips for the cleanest result.
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How to Remove EXIF Metadata (Location & Camera Info) from Photos
Photos can quietly reveal where and when they were taken. Learn what EXIF data is and how to strip it before sharing images online.
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How to Remove the Background from an Image Free (No Photoshop)
Remove a photo background in seconds with an AI tool that runs in your browser — for product photos, profile pictures and passport photos.
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How to Convert HEIC to JPG Free (iPhone Photos on Windows & Android)
iPhone photos saved as HEIC will not open or upload everywhere. Convert HEIC to JPG in seconds — no app, no signup, files stay on your device.
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How to Convert JPG to WebP (and Make Your Website Faster)
Why WebP loads faster than JPG, how to convert your images in seconds, and when to keep a JPG fallback.
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How to Reduce Image Size to 100KB, 50KB or 20KB (Free)
Step-by-step ways to shrink a photo to an exact KB limit for online forms, applications and upload portals — without blurring it.
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JPG vs PNG vs WebP: Which Image Format Should You Use?
A practical comparison of JPG, PNG and WebP — file size, quality, transparency and compatibility — so you pick the right format every time.
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How to Compress an Image Without Losing Quality (Free, Online)
Learn how lossy and lossless compression work and which quality setting shrinks photos by up to 80% with no visible difference.
Read guideText & Developer
2 min read
How to Generate a Strong Password (and Why Length Beats Complexity)
What makes a password hard to crack, how long it should be, and how to generate a random one you can actually use.
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How to Convert Voice or Audio to Text in Hindi and English (Free)
Transcribe recordings, lectures and videos into text or SRT subtitles, privately in your browser. Tips for accurate Hindi transcription.
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What Is Base64 Encoding? How to Encode, Decode and Convert Images
Base64 explained in plain English: what it is, why it adds 33% to size, when to use it, and how to encode text or images in one click.
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How to Format, Validate and Minify JSON (and Convert JSON to CSV)
Fix messy JSON, spot syntax errors, minify it for production and convert between JSON and CSV — with common mistakes explained.
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2 min read
How to Make a Quotation: Format, Example and Free Maker
What a quotation should contain, how it differs from an invoice, and how to create one in a few minutes.
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Cash Receipt and Fee Receipt Format: What to Write
A simple receipt format for cash and fee payments, with the details that matter and a free generator.
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How to Make a GST Invoice in India: Format, Fields and Free Generator
The fields a GST tax invoice should have, how CGST, SGST and IGST work, and how to create an invoice PDF in minutes.
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Leave Application and Resignation Letter Format (With Examples)
Simple, polite formats for a leave application and a resignation letter, with tips on what to write and what to avoid.
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How to Make a Resume: Simple Tips and a Free Resume Maker
A clear, one-page resume that employers and applicant tracking systems can read, with section-by-section tips.
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What Should a Salary Slip Contain? A Simple Payslip Format
The parts of a payslip, from earnings and deductions to net pay, and why employees should keep theirs.
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