Guides

Understand how PDF compression reduces file size, what you gain, and the one real trade-off to know about before you compress a document.

Understand the difference between lossy and lossless compression, and which approach PDFPilot's Compress PDF tool actually uses.

Understand how PDFPilot combines multiple PDF files into one document, and what happens to your files' pages and order along the way.

Merging shouldn't degrade your files. Here's why PDFPilot's Merge PDF keeps every page exactly as it was, and how that's different from compression.

Understand how PDFPilot breaks a PDF into smaller files, and why splitting can produce more than one output file.

A practical walkthrough of Split PDF's page-range syntax, from single pages to multiple ranges at once.

Understand how PDFPilot turns each page of a PDF into its own JPG image.

PDF to JPG uses a fixed rendering scale and JPEG quality. Here's what that actually means for your output images.

Understand how PDFPilot turns your JPG and PNG images into a single PDF document.

No — each PDF page matches its source image's exact dimensions. Here's what that means if you're combining images of different sizes.

Understand the exact XML structure PDFPilot's CSV/Excel/XML tools produce and expect, and the real limitations to know about before you convert.

Understand what actually happens when PDFPilot converts an iPhone HEIC photo into a JPG or PNG, and why the browser can't just open a HEIC file directly.

Understand exactly how PDFPilot draws a text watermark onto a photo, what the position and opacity settings control, and what tiled watermarking actually does.

PDFPilot's data-format tools all convert around one shared internal shape. Understanding that shape explains what each tool can and can't do.

YAML and JSON represent the exact same kinds of data — objects, arrays, strings, numbers — in different syntax. Here's what actually changes when you convert between them.

TXT to PDF, Markdown to PDF, and CSV to PDF all share the same underlying layout engine. Here's exactly what it does with your content, and what it deliberately doesn't do.

Formatter, minifier, and validator tools for JSON and XML all share one real property: every one of them fully parses your input first. Here's what that means in practice.