PDF tips, tutorials & guides
Learn how to merge, split, compress, and manage PDFs like a pro — straight from the PDFThings team.
How to Split a Large PDF into Separate Files (Free & Online)
Sometimes a PDF is too much of a good thing — a 200-page report when you only need chapter three, a scanned bundle of contracts that should really be five separate files, or a single document that's too large to email as one piece. Splitting a PDF solves all of this, and it takes about as long as merging one.
How to Merge PDF Files Online for Free (No Sign-Up)
Whether you're combining invoices for a client, putting together a portfolio, or assembling a job application with a resume, cover letter, and references, merging PDFs is one of the most common document tasks — and one of the easiest to get wrong if you don't control the page order. Here's how to do it cleanly, for free, in under a minute.
How to Compress a PDF Without Losing Quality (2026 Guide)
Large PDF files are one of the most common headaches at work — email attachments get rejected, uploads time out, and shared drives fill up fast. The good news: you can shrink almost any PDF by 50-90% without making the text blurry or the images unusable, as long as you compress it the right way.