PDF blog
Plain-language explainers about image formats, page sizes, scanning, file size and staying safe with online PDF tools.
A4 vs Letter: PDF Page Size, Orientation and Margins
A4 and US Letter compared in mm, inches and points, plus orientation, margins, printing scale problems and how Image to PDF handles each option.
8 min readFix Common PDF Errors: Passwords, Corrupt Files, No Pages
What PDF error messages mean and what to do: password-protected files, corrupt downloads, memory limits on phones, wrong extensions and blank pages.
8 min readHow to Convert Images to PDF: A Practical Walkthrough
Prepare your pictures, set the order, choose a page size and check the result. A step-by-step guide to turning JPG, PNG and WebP images into one PDF.
7 min readHow to Keep PDF File Size Down: At the Source and Afterwards
Why PDFs get large and how to prevent it at the source: photo resolution, scanner settings, JPEG vs PNG, page size, and splitting for email limits.
8 min readHow to Merge PDF Files Free: Order, Naming and Checks
Combine several PDFs into one document without surprises. Prepare files, set the order, verify the result and know what a merge can lose.
6 min readHow to Scan Documents With Your Phone and Make a PDF
Practical tips for lighting, framing, resolution and page order when scanning paper with a phone camera, then turning the photos into a single PDF.
8 min readHow to Split a PDF into Pages or Ranges
Extract a chapter, send a single page or break a long PDF into a ZIP of separate files. Range syntax, the three split modes and how to check the output.
6 min readIs It Safe to Use Online PDF Tools? What to Check First
How upload-based and in-browser PDF tools differ, what to check before trusting any site with a document, and what this site does and does not promise.
7 min readJPG vs PNG for PDF: Which Image Format Should You Use?
How JPEG and PNG differ for PDF creation: compression, photos versus screenshots, transparency, file size, and how this site embeds each format.
6 min readPage Order and Rotation: Getting Your PDF Pages Right
How to control page order with Merge and Split, name files so they sort correctly, and fix sideways photos before conversion. This site cannot rotate PDF pages.
7 min read