Image and document guides
Practical, no-fluff walkthroughs for the document tasks people actually get stuck on: exam photo and signature sizes, hitting an exact KB limit, converting and cropping files, and getting a stubborn form to accept your upload.
Exam photo & signature sizes
The photo and signature dimensions, KB limits and formats for every major Indian exam, and how to hit them.
June 23, 2026 · 9 min readRead
Signature for bank & exam forms
Scan, crop and compress a handwritten signature to the right shape and KB for bank KYC, cheques and exam uploads.
June 23, 2026 · 8 min readRead
Passport size photo at home
Standard sizes by country, the rules that get a photo accepted, and how to size, set the background and print it.
June 23, 2026 · 8 min readRead
Print passport photos at home
Tile passport photos on a 4×6 or A4 sheet, print at the right size and DPI, and cut them clean.
June 23, 2026 · 8 min readRead
Change background to white
Swap a busy background for clean white (or blue/grey/red) for passports, exam forms and product photos, then size it to fit.
June 23, 2026 · 8 min readRead
Why uploads get rejected
Decode every upload error (too large, too small, wrong format, wrong size, bad background) and fix each in a click.
June 23, 2026 · 9 min readRead
Compress without losing quality
Lossy vs lossless, picking the right format, resizing first, and hitting an exact KB target, explained plainly.
June 23, 2026 · 7 min readRead
Shrink photos for email & chat
Fit attachment limits, send many images at once, and avoid WhatsApp re-compressing your photos to mush.
June 23, 2026 · 8 min readRead
Resize in cm or mm
The cm-to-pixel formula, what DPI to choose, a ready conversion table, and how to hit an exact print size.
June 23, 2026 · 6 min readRead
Crop & aspect ratios
Square, 16:9, 4:5, circle and document crops: which ratio to use where, and how crop differs from resize.
June 23, 2026 · 8 min readRead
Profile picture sizes
Recommended DP dimensions for Instagram, LinkedIn, WhatsApp, X, Facebook and YouTube, and how to crop them right.
June 23, 2026 · 8 min readRead
Convert HEIC to JPG
Why iPhone photos are HEIC, where the format breaks, and how to convert to JPG for any form, PC or email.
June 23, 2026 · 8 min readRead
JPG vs PNG vs WebP
Compression, transparency, support and file size compared, with exactly when to use JPG, PNG, WebP or AVIF.
June 23, 2026 · 8 min readRead
Photos to PDF
Combine images into one clean PDF for uploads: page order, page size, and keeping the file small.
June 23, 2026 · 8 min readRead
Extract images from PDF
Save a PDF page as a JPG or PNG, or pull out the pictures inside — at the right resolution and file size.
June 23, 2026 · 8 min readRead
ID card & badge sizes
CR80 and every common badge size in mm, inches and pixels at 300 DPI, plus bleed, safe area and photo placement.
June 23, 2026 · 9 min readRead