Tips for working with PDFs and images
Practical guides on file formats, compression, and getting the most out of LovePDFImg's tools.
How to Add a Watermark to a Photo Online
Protect your photos from being used without credit. Learn how to add a text watermark to any image online for free.
Best Image Formats for the Web in 2026
JPG, PNG, or WebP? A breakdown of when to use each format for faster-loading, better-looking websites.
How to Change Image DPI to 300 for Printing (Without Resizing)
What DPI actually means, why printers ask for 300 DPI, and how to change it without touching your image pixels or dimensions.
How to Convert WebP to JPG (And Why Your Browser Saves Images as WebP)
Downloaded a .webp file that nothing will open? Here's why websites serve WebP and how to convert it to universally compatible JPG in seconds.
How to Resize an Image Online Without Photoshop
Resize photos to exact pixel dimensions or scale by percentage - free, browser-based, with aspect ratio lock to prevent distortion.
How to Convert a PDF to JPG Images Online (All Pages at Once)
Export every page of a PDF as high-quality JPG with DPI and quality control - single page downloads directly, multiple pages come as a ZIP.
How to Add a Watermark to a PDF for Free (Text Watermark)
Stamp CONFIDENTIAL, DRAFT, or a copyright notice across every page of any PDF - free, browser-based, no Adobe Acrobat needed.
How to Add Page Numbers to a PDF Online (Free)
Add sequential page numbers to any PDF - choose position, starting number, and format. No Adobe Acrobat, no software to install.
How to Extract Pages from a PDF and Save as Separate Files
Pull specific pages from a large PDF and save them as a new file - visual thumbnail selection, free, browser-based.
How to Reorder Pages in a PDF Without Adobe Acrobat
Drag and drop PDF pages into the correct order using visual thumbnails - free browser tool, no software or subscription required.
How to Delete Specific Pages from a PDF Online Free
Remove blank pages, confidential sections, or unwanted content from any PDF - click thumbnails to select, delete, and download.
How to Split a PDF Into Individual Pages - 3 Free Methods
Break a PDF into single-page files, extract a page range, or use your browser's print dialog - three methods ranked from fastest to most flexible.
How to Check Image Dimensions and File Size Online (Instantly)
Find pixel dimensions, file size, aspect ratio, and megapixel count of any image instantly - free, no upload, multiple images at once.
Complete Guide to PDF Page Management: Merge, Split, Delete, Reorder
Every PDF page operation explained in one guide - when to merge, split, delete, reorder, or extract - with the right free tool for each task.
How to Protect a PDF With a Password for Free (No Adobe Needed)
Add encryption to any PDF so only the right people can open it - browser-based, no upload, no software. Includes tips on choosing a strong password.
Best Image Format for Websites in 2026: WebP, AVIF, JPG, or PNG?
WebP is the clear winner for web images today - 25-35% smaller than JPG with transparency support. Here's the full comparison and recommended strategy.
How to Flip an Image Horizontally Online - Free Mirror Effect
Mirror any photo left-to-right or top-to-bottom with instant preview. Flip horizontally, vertically, or both - free, browser-based, no software.
How to Edit PDF Metadata (Title, Author, Date) for Free
PDFs carry hidden metadata that can reveal internal author names, software, and dates. Learn how to view and clean it before sharing any document.
How to View What's Inside a ZIP File Without Extracting It
Preview every file name, size, and compression ratio inside a ZIP before downloading anything - instant, browser-based, no extraction needed.
How to Create a ZIP File Online Without Any Software
Bundle any mix of files into a single ZIP archive - free, browser-based, no software to install. Works with any file type or combination.
What Does DPI Mean? 72 DPI vs 96 DPI vs 300 DPI Explained Simply
DPI confuses almost everyone. Here's the plain-English version: what it is, what it isn't, and exactly when each value matters for print and screen.
JPG vs PNG vs WebP: Which Image Format Should You Use and When?
A clear, no-jargon breakdown of all three formats - when each wins, when each loses, with a comparison table and quick decision guide.
How to Compress a PDF Without Losing Quality (Browser-Based, Private)
Most PDF compressors upload your file to a server. This one doesn't - your PDF is compressed entirely in your browser, never leaving your device.
How to Unlock a Password-Protected PDF for Free
Forgot the password to a PDF you own? Learn how to unlock it online for free - browser-based, supports RC4 40-bit and 128-bit encryption.
How to Merge Multiple Images into One PDF (Free, No Signup)
Combine JPG, PNG, and WebP images into a single PDF document - one image per page, drag to reorder, download instantly.
How to Crop an Image to Exact Pixels Online (Free Tool)
Need a photo at specific pixel dimensions? Crop to exact coordinates with a drag-and-drop tool - free, browser-based, no Photoshop.
How to Remove EXIF Data and GPS Location from Photos Before Sharing
Your photos carry hidden GPS coordinates and device info. Learn how to strip all EXIF metadata before posting publicly - free and private.
How to Convert PNG to JPG Without Getting a White Background
Why transparent PNGs get a white box when converted to JPG, and how to choose any background colour for the transparency fill.
How to Reduce PNG File Size Without Losing Transparency
PNG files with transparent backgrounds can be huge. Here's how to compress them significantly while keeping the alpha channel intact.
How to Compress JPG to 20KB, 50KB, or 200KB - Step by Step
Different platforms need different file sizes. Learn how to compress a JPG to any specific KB target automatically - no guesswork.
How to Compress JPG to 100KB Online Without Losing Quality
Government forms, college portals, job applications - all want photos under 100KB. Here's the fastest, cleanest way to hit that target.