Photo and Signature Size for Online Forms
Meet strict application portal rules such as 20–50 KB photo and 10–20 KB signature limits using Image Resizer and Compress Image without sending your personal images across the network.
QuickFileTools Guides
Practical walkthroughs showing how to prepare documents and images using client-side tools that run entirely on your device.
Sign a PDF Without Uploading
Add your signature directly to PDF documents inside your web browser while keeping sensitive contracts and applications private on your phone or computer.
PDF Too Large to Upload? Fixes That Work
Compress heavy PDF files to pass recruitment, government, or academic portal size limits, understand why text documents behave differently, and use page extraction as a fallback.
How to Check a Tool Does Not Upload Files
Learn two straightforward methods—the offline disconnect test and browser developer tools inspection—to independently verify that a tool processes files locally on your own machine.
Why Your PNG Turns Black When Converted to JPG (and How to Fix It)
Transparent PNG areas turn black in JPG because JPG has no transparency and browsers fill the gap with black by default. See our test results and how to choose white, grey or a custom colour instead.
Why Is My JPG Bigger Than My PNG? (Tested on Screenshots and Photos)
JPG files are often larger than PNG for screenshots and graphics because JPEG adds data to sharp edges. See our test results and the right settings to use.
JPG Quality 70 vs 85 vs 92 vs 100: What Actually Changes
Quality 85 is the balanced default for photos, while 100 switches browser engines to full colour at a high file size. See test numbers for 70, 85, 92 and 100.
Convert PNG to JPG Under 50 KB for Online Forms (With Real Limits)
Need a JPG under 50 KB for an online form? Learn how to compress PNG images to fit strict file limits, enlarge files that fall below minimums, and avoid portal errors.
JPG vs JPEG: Is There Any Difference?
JPG and JPEG are the exact same image format with different file extensions. See why two names exist, how .jfif fits in, and our test results across five tools.
Best Image Format for Website Speed: JPG, PNG, WebP or AVIF?
We compared JPG, PNG, WebP and AVIF file sizes in browsers and in a server encoder. WebP is the practical pick today; AVIF was smallest for photo-like detail.
How to Batch Convert Multiple PNGs to JPG and Download as ZIP
Convert up to 10 PNG files to JPG at once and download them in a single ZIP. See test results across 10 real files, quality settings, and how browser conversion works.
Can You Convert JPG Back to PNG? (Why Transparency Won't Return)
Converting a JPG to PNG works in any converter, but transparency will not return because the JPG already filled it with solid colour. See our test results and what does work.
Are Online Image Converters Safe? What Happens to Your Files
Online image converters are safe if they process files locally in your browser. Learn what happens to your uploads, what HTTPS protects, and how to test any tool.
What Is a PNG File? Transparency, Compression and When to Use It
A PNG file uses lossless compression and supports transparency, making it ideal for screenshots and logos. Learn how PNG works and when to convert to JPG.
Best Image Format for WhatsApp, Instagram and Email
JPG is the best image format for photos on WhatsApp, Instagram and email. Learn exact dimensions, email attachment limits, and when PNG is the right choice.
Converting PNG to JPG for Printing: DPI, Colour and Quality Settings
Convert a PNG to JPG for printing with the right pixel size and quality. We tested whether the JPG keeps its DPI and colour profile.
How to Remove a Password From a PDF (When You Know It)
Learn how to remove a known password from a PDF file directly in your browser, keep your document private without uploading, and save an unencrypted copy.
How to Password-Protect a PDF Without Uploading It
Password-protect your PDF with 256-bit AES encryption directly in your web browser while keeping sensitive documents private on your own device.
How to Merge PDF Files Without Uploading Them
Combine multiple PDF documents directly in your browser without uploading files to a server, arrange page order, and download a single merged PDF.
How to Split a PDF Into Separate Pages or Page Ranges
Learn how to split a PDF into separate pages, custom page ranges, or extracted pages directly in your browser without uploading your files.
Photo Pixels vs KB: Which One Does the Exam Portal Check?
Pixels and KB are separate measurements, so an exam photo can meet one and miss the other. Here is what each means and how to check both before you upload.
IBPS Photo, Signature, Thumb and Declaration Sizes
The photo, signature, left thumb and handwritten declaration sizes from the official IBPS PO/MT-XV (2025) guidelines, with the rules most likely to catch you out.
Photo Size Not Valid? 7 Reasons an Exam Portal Refuses an Upload
Seven likely reasons an exam portal refuses a photo or signature, each tied to a written rule, including three that no resizing tool can fix.
PDF to JPG for Form Uploads: Choose the Right Quality
Convert PDF pages to JPG for form uploads by matching quality settings to file size and readability requirements.
Why PDF to Word Loses Formatting, and What to Do
Learn why PDF to Word conversion extracts text without preserving original layouts, what our test file showed, and practical steps to take instead.
Convert a Bank Statement PDF to Excel Without Uploading It
Convert a bank statement PDF to an Excel spreadsheet directly in your browser without uploading files, remove passwords you know, and verify extracted numbers.
How to Watermark ID Copies Before You Share Them
Add a watermark to an ID copy before you share it, and know what the mark does and does not do.
How to Crop a Photo to Passport Size
Crop a photo to the shape your form asks for, using exact pixels, then check the file against the form's limits.
How to Rotate a PDF Permanently So It Stays Turned
Turn PDF pages and save a new file that keeps the rotation, one page at a time or all together.