PDF How-To Guides
Step-by-step walkthroughs for the most common PDF tasks, on desktop, iPhone, and Android.
How to Merge PDF Files on Desktop and Mobile
Merging PDFs is one of the most common document tasks, whether you're combining scanned pages, putting a resume and cover letter together, or assembling a set of reports. Here's exactly how to do it on desktop and mobile.
Read the guideHow to Delete or Remove Pages From a PDF
Blank scanner pages, outdated cover sheets, or an extra page you didn't mean to include — deleting pages from a PDF is a quick fix once you know where to look.
Read the guideHow to Split a PDF Into Multiple Files
Splitting a PDF means turning one file into several smaller PDFs, each holding a subset of the original pages — the source document stays as it was, and the split pieces are new files you download separately. It's useful when a single PDF actually contains a few distinct documents, when only part of a long file needs sending, or when you want each page on its own. With ItsaPDF, the file is processed locally in your browser and no account is required.
Read the guideHow to Add Page Numbers to a PDF
Page numbers make a long document easier to navigate, easier to cite, and easier to reassemble if printed pages get shuffled. Here's exactly how to add them — including which pages to skip and where the numbers should sit. With ItsaPDF, the file is processed locally in your browser and no account is required.
Read the guideHow to Convert JPG, PNG, and Phone Photos to PDF
Photos of receipts, whiteboards, screenshots, and scanned pages are everywhere on our phones — turning a batch of them into one clean PDF makes them far easier to send and store.
Read the guideHow to Rotate and Save a PDF Permanently
The rotate button in your PDF viewer often doesn't stick once you close the file or send it to someone else. Here's how to fix a sideways or upside-down PDF for good, on any device.
Read the guideHow to Add a Watermark to a PDF on Android
Stamping a PDF with "Draft" or "Confidential" text usually feels like a desktop task. Here's how to do it directly from an Android phone, with no app to install.
Read the guideCommon PDF Errors and How to Fix Them
A file that won't open in a PDF tool is frustrating, especially without a clear reason why. Here's what ItsaPDF's own error messages actually mean, and what to do about each one.
Read the guidePDF to PNG vs. JPG vs. WEBP: Which Format to Use
ItsaPDF can turn PDF pages into PNG, JPG, or WEBP images, but the best choice depends on what the page contains and what you're going to do with the image. Here's how the three actually differ.
Read the guideHow Browser-Based PDF Processing Actually Works
"Processed locally in your browser" is a claim worth understanding, not just trusting. Here's what that actually means on ItsaPDF, and what it doesn't cover.
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