PDF Guides & Tutorials
Practical, step-by-step articles on merging, splitting, scanning and converting documents — with tips that work on any device.
How to Scan Documents with Your Phone and Get a Clean PDF
You don't need a scanner. With good light, the right angle and a scan filter, a phone photo becomes a crisp, lightweight PDF that offices and upload portals accept.
How to Make a PDF Small Enough to Email or Upload
Email providers and upload portals reject files above a size limit. Here is why PDFs get large and practical ways to bring them under the limit without making them unreadable.
How to Merge PDF Files Without Uploading Them Anywhere
Combine several PDFs into one document directly in your browser, choose the exact page order, and keep confidential files on your own device.
How to Split a PDF: By Page Range, Single Pages or File Size
A practical guide to the different ways of splitting a PDF, with examples of when to use page ranges, fixed blocks, single-page extraction and size-based splitting.
How to Turn iPhone Photos (HEIC) into a PDF
iPhones save photos as HEIC, a format many websites and computers don't accept. Learn what HEIC is and how to turn those photos into a PDF or JPG without extra apps.
PDF to JPG: Choosing the Right Resolution (DPI) for Screen and Print
What DPI means when you turn PDF pages into images, how many pixels you actually need for screens, social media and printing, and how to avoid blurry or oversized files.
Are Online PDF Tools Safe? What Happens to Your Files
Most online PDF converters upload your documents to a server. Learn how these services handle your files, what the risks are, and how browser-based tools avoid uploads entirely.
Preparing Documents for Online Applications: Formats, Sizes and Scans
Job, university, visa and government portals have strict rules for uploaded documents. A checklist for getting the format, file size, page order and scan quality right the first time.
How to Combine Multiple Photos into One PDF
Put several pictures into a single, neatly ordered PDF with the right page size, orientation and margins, on a phone or computer, without installing anything.
How to Reorder or Delete Pages in a PDF
Pages in the wrong order, a blank page in the middle, an outdated cover sheet? Here's how to rearrange and remove PDF pages in your browser, without a paid PDF editor.
How to Get the Original Images Out of a PDF
Need the photos from a brochure, catalogue or report? Learn the difference between extracting embedded images and taking screenshots of pages, and how to get the best quality.
Splitting Odd and Even Pages for Double-Sided Printing
How to print double-sided on a printer that can't do it automatically, and how to handle double-sided scans, using a PDF split into odd and even pages.
A4 vs. US Letter: Which Page Size Should Your PDF Use?
The two most common paper sizes differ by only a few millimetres, but choosing the wrong one can cut off content or leave odd margins. Here's how they compare and which to choose.
JPG, PNG or PDF: Which Format Should You Use?
Photos, screenshots, scanned documents and forms each have a format that suits them best. A plain-language comparison of JPG, PNG and PDF, with practical recommendations.
How to Digitize Receipts and Paperwork into Organized PDFs
A simple system for turning paper receipts, bills and letters into searchable, well-named PDF files, so you can find any document in seconds and reduce the paper in your home.