How To View PDF Metadata? An All-Encompassing Guide

Data regarding a piece of data is referred to as metadata. PDF Metadata Viewer is one of the most excellent tools for easily viewing pdf metadata. It offers several intriguing characteristics. It examines the information for several files at once, like the name of the PDF file and the creator's name, etc. You can retrieve this information and determine the author of the PDF file if it has undergone any modifications.

The metadata for a PDF file may include a variety of fields. The fields you view on Microsoft Windows while in the detailed view are all file metadata. Additional fields of data include the author of the file, the application used to create the file, the date and time the file was created, the specific time it was last edited, etc.

Part 1: What Are the Components of Metadata?

The phrase "PDF metadata" refers to fields that may be searched inside a document's attributes and describe its subject matter. PDF information should ideally be as precise and detailed as possible to facilitate search.

Some of the elements that comprise metadata are as follows:

  • Author

Author's information focuses on the document's author. However, by HHS guidelines, the author should be the division, office, etc, from which the paper originated rather than a single individual.

  • keywords

The use of keywords is essential for improving the document's online searchability. Consider using essential terms from the document's title, subject, and some of its headers as your keywords if you're unsure what to use.

  • Title

The document should be brief and precisely described in the title, which is different from the file name. The title information is necessary for accessibility.

  • Subject

While the title clearly states the topic of the paper, the subject might help give additional precise information. Fewer constraints govern the subject from HHS than the title is.

  • Language

The language of the text is the last essential component of the metadata. All accessibility guidelines call for stating the language of the document, and it must be done correctly so that when assistive technology is used to read the PDF, it does so using the language in which the words are written.

Part 2: How to View PDF Metadata?

UPDF is the most satisfactory and economical solution for effectively viewing metadata from PDF files. Due to its desirable features and available possibilities, UPDF has effectively established a solid reputation as an effective tool. Operating systems on Windows, Mac, Android, and IOS are also supported.

To view PDF metadata using UPDF, follow these steps:

Step 1. Downloading and setting up UPDF, Open the PDF file.

click open file with updf

Step 2. Click on "File" and then tap on "Properties". Now you can view metadata.

select properties on updf

Part 3: How to Add Metadata to PDF Files?

UPDF not only allows you to view PDF metadata, but also add metadata to PDF files. Let's look at the step-by-step guide.

Step 1. Open your PDF with UPDF. Tap on the "File" > “Properties" option on the top left.

Step 2. Under the "Description" tab, you can add Title, Author, Subject, and Keywords.

add title, author, subject and keyword with updf

Step 3. Once done, you can save the changed file.

Part 4: How is Metadata Stored in PDF Files?

There are numerous methods for adding metadata to PDF files:

Since version 1.0, the Info Dictionary (or info dict) has been a part of PDF. A collection of document info entries, just simple pairs of data made up of a key and a corresponding value, are used to store generic information about a PDF file. The eight pre-populated default keys in PDF 1.1 and later are as follows:

  • The Author is the person who wrote the document.
  • Creation Date is the time and date the document was first produced.

The following fields are required:

  • The subject is what the document is about.
  • The title is the document's title.
  • Keywords are which can be separated by comma.
  • Modified is the most recent update date and time.

No other data are permitted; the values must only be text. Applications can contribute unique data sets to the information dictionary.

Since PDF 1.4 (2001), metadata streams, a second and more complex technique, have been available to embed metadata in PDF files. A file's objects, such as a typeface or picture, or the entire document may be covered by a metadata stream. Its structure is based on XMP (Extensible Metadata Platform). Adobe created the XMP technology to include information in files. It's an ISO standard that may also be utilized with other file types, such as JPG or SVG (ISO 16684-1). An XMP packet may include a brief list of name-value pairs, similar to the info dictionary. However, the data can also be nested, and a namespace can be used to harmonize its organization. The XMP data may be compressed to make files smaller because it is incorporated into a stream.

The PieceInfo Dictionary (used by Illustrator and Photoshop for application-specific data when you save work as a PDF), Object Data (or User Properties), and Measurement Properties are different methods of inserting metadata. You may give page names or labels with relevant descriptions using Adobe Acrobat. Such page labels are metadata at the page level since they may identify whether pages are in a magazine's index or sports section.

Part 5: A Robust and Productive PDF Editor

A powerful PDF editor enables you to quickly use several features to your PDF documents so that you may learn the art of managing your PDF file efficiently with UPDF. Professionals may contribute to shaping the digital world with innovative and astute ideas while helping many consumers. UPDF aspires to consistently outperform any PDF editing program currently on the market while also securing the top position of being a very easy-to-use tool for both personal and professional uses.

The UPDF has a promising future. Since its first release, the Mac, Android, iOS, and Windows versions have all increased new functionality. The introduction of additional features is imminent. It is among the most beneficial PDF editors and organizers available.

effortless pdf editor - updf

The UPDF team's primary goal is to provide consumers with a cost-effective alternative to pricy, inefficient software through a PDF management solution. Over the next several months, its users can expect to use many brand-new features.

Features of UPDF

Let's quickly review some of the features it has:

Advantages of UPDF

There are many alternatives to UPDF, but we'll focus on its key features. So, these are they:

  • Compared to other editors on the market, UPDF offers you a fantastic user experience.
  • You'll become more productive, and the task is completed more quickly.
  • UPDF is a user-friendly software, you may use it even if you have little experience with PDF editors.
  • The online PDF editor is speedy and entirely trustworthy. It is a universal PDF solution that allows you to modify PDF images, words and links. You can always rely on this PDF editing program!
  • Every OS is compatible with UPDF. UPDF is supported by OS like Windows, Mac, iOS, and Android. UPDF is entirely and unequivocally approved for use on any OS.
  • If we carefully examine the available PDF editors on the internet, we'll be disappointed because they all have certain shortcomings.

There are so many features and components in this fast software. The PDF editor is so astounding that you won't waste much time using it. You'll get the outcome right away. It's not only enjoyable. Instead, using UPDF is useful. By wandering about the site to a lesser extent, you can get to the selections immediately.

If you feel UPDF is right choice, you can download UPDF by clicking the download button below.

Part 6: Frequently Asked Questions of View PDF Metadata

How Do I View Metadata in a PDF Mac?

You can open a PDF or picture with the Preview app on your Mac. Then choose Show Inspector under Tools. Use the panes in the Inspector window to get additional details about the PDF or image. View the basic information of a PDF or image. However, Preview only has several functions related PDF-related problems, so we will recommend UPDF, an all-in-one PDF editor as the best choice, it not only covers your basic needs, but also has some advanced features like OCR, and add signatures to PDF files, its definitely worth a try!

How Do I Find PDF Metadata?

Find PDF metadata in the following way:

Open UPDF > Select File > Properties, then select the Description tab's Additional Metadata button. To view all the document's embedded metadata, choose Advanced.

What is Metadata Used for?

Metadata is used for:

  • Web pages
  • Videos
  • Computer files
  • Relational databases
  • Images
  • Spreadsheets
  • Audio files

How Do I Remove Metadata from a PDF?

To get the removal of metadata:

  • Click Remove Metadata under the "Redaction" group on the "Protect" tab.
  • You are prompted in a dialogue box to confirm your want to delete all metadata. Select "OK".


Metadata is information that supports a PDF document. It is not a substantial portion of any document or webpage that you may be reading. Instead, it contains details on a file or website. Depending on the file type, this information is typically concealed in the code and may even be accessed through the settings menu.

UPDF is one of the best PDF metadata readers, because in addition to providing the option to see metadata, UPDF also offers the opportunity to read, update, and remove information from PDF files.

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