How to Edit PDF

Protect sensitive legal PDFs with passwords, encryption, redaction, and secure signatures—for free—so only the right people can open and use them.

Your font choice affects how academic work is read and remembered. Discover the best fonts for papers and theses, plus formatting tips.

Create a fillable PDF for legal agreements in a few steps online. Add fields, request signatures, and protect sensitive data—fast, free, and secure.

Accidentally highlighted something in your PDF and can’t get rid of it? Here’s how to remove highlights in PDF files quickly and cleanly.

Learn how to print a brochure double-sided from a PDF. Get the right layout, orientation, and duplex settings for clean, professional results.

Bold not showing up properly? Learn how to make bold text in a PDF—and troubleshooting tips—using free online tools that work across devices.

Learn how to make a PowerPoint brochure, export it as a PDF, and refine it with Smallpdf for print or sharing.

Learn how to open PDF in Chrome quickly and reliably, change your default viewer, and fix common issues that stop PDFs from opening in your browser.

Easily underline text in a PDF document online with Smallpdf. Highlight key points, add emphasis, or mark notes—no downloads needed.

Learn how to edit text color in PDF files online. Change font colors in text boxes, comments, and forms in just a few clicks—no software needed.

Change Smallpdf to any of our 24 supported languages in seconds, no matter your device. We make it easy for you to work comfortably in your language.

Create a tamper-proof PDF and stop unauthorized editing, copying, and screenshots. It's easy to do and doesn't require any fancy software.

Increase PDF font size for clearer reading, printing, and easier form-filling with online tools and other methods that work on any device.

Need to fix an error or redact info in a PDF bank statement? You can edit bank statements online with just a few clicks.

Write on a PDF for free with Smallpdf. Add text, drawings, highlights, and signatures directly in your browser—no downloads needed.

Need to change font size in PDF files? Use a simple online tool to resize text, fill forms, and adjust layouts in just a few quick steps.

Add a table of contents to PDFs to make navigation a breeze, plus learn how to create a glossary, index, and sections for a polished document.

PDFs can be tricky to edit. Here’s how to fix the most common issues in a few easy steps—no IT training needed.

Align text in a PDF quickly with Smallpdf’s online editor. No signups needed—just upload, edit, and download your perfectly aligned document.

Want to convert a PDF to black and white or grayscale? Wondering what the difference is? And can you add color to monochrome PDFs? It's all here.

Enlarge your PDFs for printing. Make your files clearer, easier to read, and ready to impress. We’ll show you how to do it with just a few clicks.

Printing a PDF in landscape mode is easy with Smallpdf and the right print settings. Get it done for free, without installing new software.

Stop struggling to print PDFs with a transparent background that ruins the formatting. Fix it easily with Smallpdf, even if you’re not a tech wizard.

Handling multiple PDF files can quickly become a hassle, especially when you need to print them in large quantities. Here’s what to do.