When you receive or download a PDF document from the Internet or via email, especially if it is from an unknown party or source, the first question that comes to mind is: Is this file safe? Who is the actual writer of it? When was it created? What software was used to produce it? What are the powers and restrictions imposed on it (such as printing and modification restrictions)? To resolve these questions and verify the authenticity of a document before opening it, checking and previewing PDF Information and Metadata is a very important security and regulatory step. In this comprehensive article, we will learn in detail how to read and examine PDF information and verify its technical characteristics locally and 100% safely without uploading it anywhere via the PDF information tool on the SmokePDF website.
What is metadata for a PDF file? What is its importance?
Metadata is a collection of technical information hidden within the digital PDF file structure, which is automatically generated by file creation and editing programs. This information includes:
- Document Title, Subject, and Author: Shows the actual author and title of the document, which is important for verifying the identity and credibility of the sender of the file.
- Creation/Modification Date: It allows you to know exactly when the document was prepared and the date of the last action on it, which is very useful for verifying the freshness of the data.
- Producer/Creator: Specifies the name of the software used to convert the document to PDF (for example: Microsoft Word or Adobe Distiller).
- Security Status: Indicates whether the file is encrypted with a password, or imposes certain restrictions that prevent readers from modifying content, copying text, or printing pages.
- Dimensions, size and number of pages: Technical details about the size of pages in millimeters or inches and their total number.
The importance of security checking the properties of the PDF file before opening it
Many people imagine that PDF files are completely safe and do not pose any danger, but in reality their complex structure can be exploited by hackers to hide phishing links or insert malicious scripts (JavaScript) that run automatically as soon as the file is opened on an old browser or reader.
Therefore, checking the technical characteristics and metadata of the file before working with it is an important first line of defense. For example, if a file claims to be an official invoice from a major company, but when you examine its metadata you find that the author is an unknown person and the software used to create it is hacker software, you will immediately know that the file is suspicious and you should avoid opening it.
Why is checking PDF file information locally the best option?
Scanning metadata through traditional sites requires uploading the entire file to their servers, which puts your files’ secrets and privacy at risk.
With SmokePDF’s PDF Info tool, the entire scanning process is done locally (Client-Side) within your browser. The tool reads internal file code and metadata directly into your personal device’s cache using JavaScript. No part of the file is uploaded to any server, which guarantees 100% complete security for your privacy.
Steps to check and preview PDF file information via SmokePDF
To easily read metadata and check your document properties, follow these steps:
- Access the PDF information tool on the SmokePDF website.
- Click the “Choose PDF” button to upload the document from your device, or drag and drop the file directly into the designated area.
- The tool will immediately read the file locally and display a list of all technical and metadata, including:
- File name and actual size in kilobytes.
- Total number of pages and page dimensions (example: A4).
- Title of the document, author, and producing program.
- Creation date and modification date, day and hour.
- The encryption and security status of the file (is it protected, is copying, printing and modification allowed).
- You can browse this information and read it carefully to understand the file structure and ensure its security and authenticity.
PDF Information FAQ
Does the scanning tool save my files or their details?
Not at all. The process takes place entirely within your offline browser, and once you close the tab, the file and its technical details are permanently deleted from the browser’s temporary memory.
Can I edit this metadata and delete the real author?
We are currently developing additional features that will allow users to edit and delete metadata (Metadata Editor) to protect their identity and privacy before sharing files with others. This feature will be available soon.
Scanning your documents and ensuring their identity and security has become very easy and secure today. Try SmokePDF’s PDF Information Tool and ensure the safety of your files and digital privacy for free and 100% secure.