PDFico Blog

Tips, tutorials, and privacy guides for working with PDF files safely and efficiently.

Privacy

Are Online PDF Tools Safe? The Hidden Privacy Risks of Uploading Your Documents

Most PDF tools upload your files to remote servers. Learn what really happens to your documents and how to protect yourself.

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Security

What Hidden Data Is Lurking in Your PDFs? A Guide to PDF Metadata and Privacy

PDFs contain more information than you think. Author names, edit history, GPS data, and even deleted text can all be recovered.

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How-To

How to Reduce PDF File Size Without Losing Quality: 7 Methods That Actually Work

Your PDF is too large for email. Here are seven practical ways to shrink it without making it look terrible.

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How-To

How to Combine Photos Into a PDF: The Complete Guide for Every Device

Need to turn a bunch of photos into one PDF? Here is how to do it on iPhone, Android, Mac, Windows, or any browser.

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How-To

How to Password Protect a PDF for Free: Windows, Mac, and Browser Methods

Sending sensitive documents by email? Here is how to add password protection to any PDF without paying for software.

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How-To

How to Sign a PDF Without Printing It: Free Methods for Every Device

The old print-sign-scan workflow is dead. Here is how to sign any PDF digitally on Mac, Windows, iPhone, or any browser.

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How-To

How to Split a PDF Into Separate Pages or Sections

Extract specific pages, remove unwanted ones, or break a large PDF into smaller files. Free methods for every device.

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How-To

How to Convert a PDF to an Image (JPG or PNG): The Complete Guide

Turn PDF pages into images for presentations, social media, or websites. Learn which format to choose and how to maintain quality.

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How-To

How to Add a Watermark to a PDF: Free Methods for Every Situation

Protect your documents with text or image watermarks. Mark drafts as confidential, add your brand, or protect copyright.

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How-To

How to Add Page Numbers to a PDF: Free Methods for Any Document

Number every page of your PDF in seconds. Choose position, format, and starting number. Perfect for reports and manuscripts.

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How-To

How to Extract Text From a PDF: 4 Free Methods That Actually Work

Pull text from any PDF — whether it has selectable text, is a scanned image, or is locked. Step-by-step for every scenario.

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Business

How to Create a Professional Invoice PDF for Free — No Sign Up Required

Every freelancer and small business needs invoices. Here is how to create clean, professional PDF invoices without paying for software.

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