PhotoTools Blog
In-depth image guides covering EXIF privacy, format conversion, compression, resizing, and browser-based image workflows.
US Passport Photo Requirements 2026: Take, Upload, and Print
Current U.S. passport photo requirements for 2026: 2 x 2 inch printed photos, 1 to 1 3/8 inch head size, online renewal file types, 54 KB to 10 MB upload range, white background, glasses, clothing, baby photos, and editing rules.
Updated September 12, 2026
Passport Photo Sizes by Country: Pixels, Inches, and Print Layout
Passport photo size is not just a square crop. For U.S. photos, the printed size is 2 x 2 inches (51 x 51 mm), a 300 DPI print layout is 600 x 600 pixels, the head must be about 1 to 1 3/8 inches tall, and online renewal uses a digital upload with separate file rules. This guide explains the math, head-size measurements, 4 x 6 print sheets, online upload constraints, and where UK and Canada sizes differ.
Updated September 12, 2026
US Baby Passport Photo Requirements 2026: Newborn, Infant, and Toddler Guide
A practical U.S. baby passport photo checklist for 2026: the same 2 x 2 inch size as adults, the baby eyes-not-entirely-open exception, no parents or hands in frame, age-specific at-home setups, DS-11 paperwork context, and the current no-AI-editing rule.
Updated September 12, 2026
UK Passport Photo Requirements 2026: 35 x 45 mm, Digital and Print
UK passport photo requirements for 2026: digital photo rules, 35 x 45 mm printed photos, 29-34 mm head size, light background, glasses, children, online photo codes, paper-form printing, and PhotoTools checks.
Updated September 12, 2026
India Passport Photo Requirements 2026: Passport Seva, OCI, Visa, and Child Photo Sizes
India photo requirements depend on the route: PSK/POPSK passport applications usually capture your photo at the appointment, DPC/SPC/CSC and children under 4 use 4.5 x 3.5 cm photos, OCI uses 2 x 2 inch (51 x 51 mm), and Indian visa uploads use square JPEG files. This guide separates the specs so you do not prepare the wrong photo.
Updated September 12, 2026
Canada Passport Photo Requirements 2026: 50 x 70 mm, Commercial Photographer, Back Stamp
Canada passport photo requirements for 2026, including the 50 x 70 mm print size, 31-36 mm face height, commercial-photographer rule, back-of-photo stamp, guarantor signature rules, online renewal digital photo specs, and where a layout tool can and cannot help.
Updated September 12, 2026
Schengen Visa Photo Requirements 2026: 35 x 45 mm Checklist
Schengen visa photo requirements are usually based on a recent color ID photo, often 35 x 45 mm, with a plain light background, neutral expression, clear eyes, and ICAO-style face proportions. Compare consulate rules, print math, at-home cropping, and the checks to make before your appointment.
Updated September 12, 2026
HEIC to JPG: Convert iPhone Photos for Sharing and Uploads
Convert iPhone HEIC photos to widely compatible JPG files without uploading them. Understand HEIC versus HEIF, quality, metadata, Windows support, web compatibility, and when keeping the original is smarter.
Updated September 12, 2026
PNG to JPG: How to Convert Without Ruining Image Quality
Learn when converting PNG to JPG makes sense, which images should stay PNG, how JPEG quality affects photos and text, and how to convert single files or a batch privately in your browser.
Updated September 12, 2026
JPG vs PNG vs WebP vs AVIF: How to Choose the Right Image Format
A practical, source-reviewed guide to how JPEG, PNG, WebP, and AVIF compress images, why the same quality setting behaves differently in each format, and how to choose the right format for photos, screenshots, transparent graphics, website heroes, upload forms, and archives.
Updated September 12, 2026
Do Social Media and Online Tools Remove EXIF Data?
Sometimes, but not in a way you should rely on. Public posts on large social platforms are usually processed before other people can view them, but private messages, document attachments, email, cloud links, and original-quality file transfers can still preserve GPS, timestamps, camera details, and other photo metadata.
Updated September 12, 2026
How to Compress Images Without Losing Visible Quality
Compress photos and graphics for websites, email, storage, and upload forms. Learn when to resize, which format to choose, how to judge quality, and why one setting cannot work for every image.
Updated September 12, 2026
DPI to Pixels: Formula, Print Size Charts, and Real Examples
Convert DPI to pixels with the formula pixels = inches x DPI. Includes practical charts for 72, 96, 150, 300, and 600 DPI; A4 and metric sizes; reverse pixels-to-print-size math; and the common trap where changing the DPI tag does not change image quality.
Updated September 12, 2026
How to Make a GIF from Images, and When Video Is Better
Use GIF when the animation must behave like an image: a short loop in email, chat, support documentation, an issue tracker, or a meme workflow. Use video when you control the web page, need smooth motion, need audio, care about Core Web Vitals, or the clip is longer than a few seconds. This guide gives a practical decision table, file-size examples, export settings, and browser markup.
Updated September 12, 2026
How to Check and Remove Photo Metadata Before Sharing
Remove metadata from JPG photos before sharing: EXIF GPS, capture time, camera details, IPTC/XMP fields, filenames, visible clues, HEIC and Live Photo edge cases, and the final verification step most people skip.
Updated September 12, 2026
How to Compress PNG or JPG to 100KB, 200KB, or 50KB
A practical 2026 guide to getting PNG or JPG files under strict upload limits such as 100KB, 200KB, or 50KB. Learn when to resize first, which format to choose, what quality setting to try, and how to avoid blurry or rejected uploads. PhotoTools runs in your browser, so private documents stay on your device.
Updated September 12, 2026
Batch Resize Images Online: PNG, JPG, WebP, and AVIF Files
Batch resize a folder of images by percentage or exact pixel dimensions without uploading them to a server. This 2026 guide explains how to choose the right target size for websites, stores, email, forms, and social posts, when to lock aspect ratio, when to crop first, and how to choose JPG, PNG, WebP, AVIF, or same-format output.
Updated September 12, 2026
How to Convert AVIF to JPG or PNG: The 2026 Compatibility Guide
AVIF is excellent for modern web delivery, but it can still get rejected by upload forms, older editors, print workflows, email clients, and locked-down work devices. This practical guide explains when to convert AVIF to JPG, when PNG is safer, what happens to transparency and color, and how to convert files privately in your browser.
Updated September 12, 2026
How to Watermark Photos with Text or a Logo, One or in Batches
Add the same text or logo watermark to a whole batch of photos without uploading your originals to a server. This 2026 guide explains when to use a corner mark, a centered proof mark, or a small brand logo, what size and opacity to start with, what batch limits to expect in the browser, and how to fit watermarking into a resize-compress-publish workflow.
Updated September 12, 2026
Crop, Mirror, Flip, and Rotate Images Online
Crop an image to a new composition, mirror a selfie, fix backward text, or rotate a sideways phone photo without uploading it. Learn which edit to use, the best order for several edits, and what happens to pixels and metadata.
Updated September 12, 2026