Free guides

Plain, step-by-step answers to everyday file and number questions: how to get a photo under 50 KB, merge PDFs, convert HEIC or work out an EMI. Each one ends with a free tool that does the job in your browser.

Image guides

PAN Card Photo and Signature Size: Resize FreeThe PAN photo and signature sizes Protean lists (3.5 × 2.5 cm photo, 2 × 4.5 cm signature, JPG, small KB) and how to resize yours free.
Passport Size Photo With White Background: Fix It at HomeMake a home-shot passport size photo's background plain white for exam, job and ID forms. Passport and visa offices usually ban edited photos, so check first.
Passport Size Photo Size in cm, Inches and Pixels"Passport size" on Indian forms usually means 3.5 × 4.5 cm. See it in inches and pixels at 200 and 300 DPI, plus US, UK and Schengen; resize with a free tool.
Print a Large Image on Multiple Pages Free (A4 Tiles)Turn one picture into a poster printed across several A4 sheets at home: crop to the right shape, split into tiles, print, trim and tape. Free, no upload.
Reduce Photo Size for Exam Forms Free (Photo + Signature)Get your photo and signature into the size, pixels and format an exam or job form asks for, free on your phone or computer: crop, resize, then compress.
Reduce Photo Size on iPhone and Android Free (No App)Shrink a phone photo in your browser, free and with no app to install. Pick the photo, lower the quality, download it, and know where the file lands.
Reduce PNG File Size Free: 3 Ways That Actually WorkA free PNG size reducer guide: why PNGs are so big, and how to shrink one by saving as WebP or JPG, or by resizing, while keeping transparency if you need it.
How to Remove the Background from an ImageCut out a person, pet or product and get a transparent PNG at full size. Free for images up to 2 megapixels.
How to Resize an Image Free (Pixels or Percent)Change a photo's size in pixels or by percentage, free in your browser, without stretching it. Lock the proportions, type a width, and download.
How to Resize an Image in CM Free (cm to Pixels)Forms that give photo sizes in cm, like 3.5 x 4.5 cm, need pixels. Convert cm to pixels at 300 or 200 DPI with one formula, then resize free in your browser.
Resize an Image Without Losing Quality (Free)Shrinking a photo keeps it sharp; enlarging it can't add detail. How to resize free without blur, pick the right format, and when an upscaler helps.
Resize a Signature for Online Forms Free (Exact Pixels)Turn a photo of your signature into a clean, small image at the exact pixel size a form asks for, free in your browser. Photograph, crop, resize, compress.
Schengen Visa Photo Size (35 × 45 mm): Make Yours FreeA Schengen visa photo is usually 35 × 45 mm with your face 70-80% of its height (about 32-36 mm). Check your consulate's checklist, then crop and resize free.
Social Media Image Sizes: A Free Cheat SheetCommon image sizes for Instagram, Facebook, X, LinkedIn, YouTube and Pinterest, and how to crop and resize your pictures to fit, free in your browser.
How to Split an Image into a Grid Free (3x3, 1x3)Cut one image into equal tiles for an Instagram grid post, a swipeable carousel or print. Free in your browser, nothing uploaded.
SSC GD Photo and Signature Size 2026 (Free Guide)SSC GD 2026: no photo upload, the form captures a live photo. Signature: JPEG, 10-20 KB, about 6 x 2 cm at 300 DPI. How to get it right, free.
SSC Photo and Signature Size 2026 (CGL, CHSL, MTS) FreeSSC now captures your photo live; only the signature is uploaded: JPEG, 10-20 KB, about 6 x 2 cm, as per the 2026 notices. Make it free, in your browser.
SVG vs PNG for Logos and Icons: Which to UseSVG scales to any size and stays tiny; PNG works everywhere. Which format to use for logos and icons, where each is accepted, and how to convert free.
Make a Transparent Signature PNG From a PhotoSign on paper, photograph it, and turn it into a clean transparent PNG you can drop into Word, Google Docs, PDFs and emails without a white box.
UPPSC Photo and Signature Size: 5 × 6 cm (Free Guide)UPPSC asks for a 5 × 6 cm photo under 50 KB and a 6 × 3 cm signature under 30 KB, at 200 DPI. How to scan, crop and compress both free.
UPSC Photo Size and Signature Rules: Free CSE GuideUPSC wants an uploaded photo plus a live photo, and a signature written three times in black ink. Prepare both free, then check the limits on upsconline.
How to Upscale a Low-Resolution Image (4x Bigger)Make a small or blurry photo four times bigger with sharper edges than a plain resize. Free for images up to 2 megapixels.
UPSSSC PET Photo and Signature Size (Free Guide)UPSSSC PET 2025 asks for a 3.5 × 4.5 cm photo of 50-100 KB and a 3.5 × 1.5 cm signature of 30-50 KB with your Hindi name below. Check the current notice.
US Visa Photo Size: 600 × 600 px, Under 240 KB (Free)For a US visa (DS-160) photo: a square JPEG of 600 × 600 to 1200 × 1200 pixels, 240 KB or less, no glasses. Crop and resize it free.
Free Vintage Photo Filter: Get the Film Look OnlineGive phone photos a vintage film look free: faded blacks, warm tones, grain and soft dark corners. Exact slider settings for 70s, 90s and old-print styles.
WebP vs PNG vs JPG for Websites (Free Converters)Which image format to use on a website: WebP for most images, JPG for maximum compatibility, PNG for pixel-perfect graphics. Plus free image converters.
What Is DPI? Pixels, Print Size and File Size ExplainedDPI tells a printer how many pixels to fit in an inch. It doesn't change the image or its file size. When DPI matters, and a free image resizer for pixel sizes.
What Is a HEIC File? iPhone Photos ExplainedHEIC is the photo format iPhones use by default. It saves space but many apps and websites can't open it. Here's what it is and how to get a JPG.
WhatsApp DP Size: Fit Your Photo in the Circle (Free)WhatsApp shows your DP as a circle cut from a square. Crop your photo square with space around your face so nothing important gets cut, free.
YouTube Thumbnail Size (1280 × 720): Resize FreeYouTube thumbnails are 16:9, at least 640 px wide; 1280 × 720 is the usual safe size. Crop, resize and compress yours free in your browser.

Video guides