PDF Tips & Tutorials
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Passport Photo Size: US 2×2 vs India 630×810 vs Visa 35×45
Pixel sizes, KB caps, and JPEG vs PNG for US 2×2, India 630×810, UPSC, and visa 35×45 photos. Crop on your device.
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Splitting a Bank Statement PDF Into Separate Months
Annual statement bundles arrive as one long PDF, but forms usually want three specific months. Here's how to pull them out without uploading your finances anywhere.
Resizing a Photo to Passport or Visa Photo Specifications
Application portals reject photos for dimensions, file size and aspect ratio, usually without saying which. Here's how to hit the spec without starting over.
When to Base64-Encode an Image (And When Not To)
Base64 embeds an image directly in your HTML or CSS with no separate request. It's genuinely useful in three situations and a mistake in most others.
Converting CSV to JSON Without Uploading Your Data Anywhere
Most CSV-to-JSON converters send your file to a server. When the CSV contains customer records, that's a problem. Here's the browser-based alternative and its limits.
Exporting an SVG Logo as PNG at the Right Size
Social platforms and most upload forms won't take SVG. Here's how to rasterise a vector logo at the size each platform actually wants.
Adding Page Numbers to a Thesis PDF After It's Already Exported
University submission portals are strict about pagination, and re-exporting from Word to fix it often breaks something else. Here's how to number the PDF directly.
Getting JSON Data Into Excel via CSV
An API returned JSON and someone wants it in a spreadsheet. Here's the conversion, plus the nested-data problem that catches everyone out.
Your Scanned PDF Is Sideways: Rotating It So It Stays Rotated
Rotating in a PDF viewer often doesn't stick — reopen the file and it's sideways again. Here's the difference between a view rotation and a real one.
Getting PDF Pages Into a Presentation as Images
You need a page from a PDF on a slide. Screenshotting gives you a blurry crop. Converting the page to PNG gives you something that holds up on a projector.
Why Your PNG-to-PDF Conversion Has White Borders (And How to Stop It)
You converted an image to PDF and got a thick white margin around it. Here's why that happens, and how to get a PDF page that matches your image exactly.
Watermarking a Draft Before You Send It (And What a Watermark Really Does)
A DRAFT stamp stops people acting on a document that isn't final. Here's how to add one, and an honest account of how much protection it actually provides.
When a PDF Won't Let You Copy Text: What's Actually Going On
Selection does nothing, or you paste gibberish. There are three different causes with three different fixes — and knowing which one you have saves a lot of time.
Reordering and Deleting PDF Pages Without Starting Over
Scanned out of order, a duplicate page in the middle, an appendix that belongs at the front. Fixing page order in place beats splitting and re-merging.
How to Extract a Single Page From a PDF
You need page 4 and nothing else. Three ways to pull one page out of a PDF, and why the print-to-PDF trick quietly costs you the text layer.
Turning a Plain Text File Into a Printable PDF
Log files, exported notes and code listings print badly straight from a text editor. Converting to PDF first gives you predictable pagination and margins.
How to Merge PDFs on a Chromebook (No Extensions Needed)
ChromeOS has no built-in PDF merger and most desktop PDF software doesn't run on it. The browser can do the job — here's the reliable way.
What Actually Gets Lost When You Merge PDFs
Merging looks lossless and mostly is — but bookmarks, form data and links behave in ways that surprise people. Here's what survives and what doesn't.
HEIC Files Won't Open on Windows — Here's the Fix
Someone sent you photos from an iPhone and Windows refuses to open them. What HEIC actually is, why this happens, and three ways to get usable JPGs.
WebP Images Won't Open? Converting Them to JPG
You saved an image from a website and got a .webp file that half your software refuses to open. What it is, and how to get a usable JPG.
How to Turn a Pile of Screenshots into One PDF
Screenshots are how most of us document things now — receipts, chat threads, error messages. Here's how to get them into a single, ordered PDF that other people can actually open.
Combining Receipts Into One PDF for an Expense Claim
Finance teams want one file, not fourteen photos. Here's how to turn a folder of receipt photos into a single tidy PDF that gets approved first time.
Compressing PDFs for a Visa Application: Size Limits and What Not to Break
Visa portals have some of the strictest upload limits on the internet, and the worst error messages. Here's how to hit the size without damaging the documents an officer has to read.
How Much Should You Compress Images for a Website? A Practical Answer
Images are usually the largest thing on a page and the easiest to fix. Here are the target sizes that actually matter, and where compression stops helping.
How to Compress a PDF to Under 500KB (Without It Turning to Mush)
500KB is the most common upload cap on job portals and application forms. Here's how to hit it reliably, and what to do when a file refuses to go below it.
How to Combine Multiple PNG Files into One PDF (Free)
Merge multiple PNG images into a single HD PDF in your browser — no watermark, no sign-up, no software install.
XLS to PDF Converter Free — Convert Excel to PDF Online
Convert XLS and XLSX spreadsheets to PDF in seconds, free, in your browser. No Microsoft Excel install needed.
How to Compress PDF to Under 100KB for Government Forms
Stop getting 'file too large' errors on government portals. How to shrink any PDF under 100KB without ruining readability.
Best Free PDF Compressor Online — Reduce Size, Keep Quality
Which free PDF compressors actually work, how much they really shrink a file, and where each one falls over.
How to Convert PDF to Word Without Installing Software
Get editable text out of a PDF on Windows, Mac, or mobile without Microsoft Office or any download.
Essential PDF Tools for Small Business
The PDF workflows a small business actually needs — invoices, contracts, scans — without an Acrobat subscription.
How to Reduce PDF Size Without Losing Quality - Ultimate Guide
Learn how to reduce PDF file size while maintaining quality. Compress PDF files losslessly with our free online tool. No quality loss, 100% free compression.
How to Compress PDF for WhatsApp Sharing - Quick Guide
WhatsApp won't send your PDF? Learn how to compress PDF files to under 16MB for easy WhatsApp sharing on iPhone and Android.
How to Combine Scanned Documents into One PDF - Complete Guide
Learn how to merge multiple scanned pages into a single PDF document. Perfect for organizing receipts, contracts, and multi-page documents.
How to Merge PDF Files on Android Phone Free - Complete Guide
Combine multiple PDF files into one document on your Android phone. No app installation required - works directly in your browser for free.
How to Merge PDF Files on Windows 10 Without Installing Software
Combine multiple PDF files on Windows 10 using free online tools. No downloads, no Adobe Acrobat needed - works right in your browser.
How to Compress PDF for WhatsApp - Send Large Documents Easily
WhatsApp has a 16MB file limit. Learn how to compress your PDFs to share documents on WhatsApp without losing quality.
Convertify PDF Merger: How to Combine PDF Files Free Online
Learn the easiest way to combine PDF documents using Convertify. No software installation required, works on all devices.
How to Split PDF into Separate Pages - Free Online Tool
Extract individual pages from PDF documents. Split one PDF into multiple files or download specific pages only.
Convertify JPG to PDF: How to Convert Multiple Photos Free
Convert JPG photos to PDF in seconds with Convertify. Learn how to combine multiple images into a single PDF document on any device.
Convertify Word to PDF: How to Convert Docx Keeping Layout
Convert Word documents to PDF while preserving fonts, images, and layout perfectly with Convertify. Works with DOC and DOCX files.
Convertify PDF Compressor: Shrink PDF to 100KB Free
Reduce PDF file size by up to 90% without losing quality using the Convertify PDF compressor. Perfect for email attachments.
Convertify Free vs Adobe Acrobat Pro — Is Paid PDF Software Worth It? (No Pricing!)
Convertify free tools vs Adobe Acrobat Pro. Why pay $275/year? No pricing, no download needed — compare features and find out when free ConvertifyTool is enough vs paid software.
How to Split PDF by Page Number - Extract Specific Pages Free
Learn how to extract specific pages from a PDF or split one PDF into multiple files. Works online without any software.
How to Scan Documents on iPhone and Convert to PDF (2026 Guide)
Turn your iPhone into a document scanner. Learn how to scan receipts, contracts, and documents directly to PDF format.
PDF to Images Converter Online Free - Convert PDF to High Quality JPG
Convert PDF pages to JPG images instantly. Extract all pages or select specific ones. Download as high-resolution images.
How to Merge PDF Files Without Adobe Acrobat - Free Alternatives
Don't have Adobe Acrobat? Learn the best free ways to combine PDF files online without expensive software.
How to Compress PDF for Email - Beat the 25MB Gmail Limit
PDF too large for email? Learn how to reduce PDF size to fit Gmail, Outlook, and other email services.
How to Convert iPhone Photos to PDF - Easy Step-by-Step Guide
Turn your iPhone photos into a PDF document. Perfect for scanning documents, creating photo albums, or submitting forms.
Best Free PDF Tools 2025 — Convertify Free Online Tools (No Download, No Pricing)
Discover the best free PDF tools with Convertify — merge, compress, convert, and edit PDFs online. No pricing, no download, no sign-up. The ultimate ConvertifyTool guide.
10 PDF Tips Every Student Should Know — Convertify Free Tools for Students
Master PDFs for school assignments, thesis submissions, and research using Convertify free tools. No download needed, no pricing — essential tips for students.
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