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Everything about 8 Types of PDF Standards

If you are reading this, there is a good likelihood that you have already worked with PDFs or utilized file formats compatible with PDFs.

You have arrived at the right place, however, if you are curious about how they function, what the many types of PDF formats are, how to make changes, and why they are usually the format of choice for a large number of working professionals.

In the following paragraphs, we will discuss all you need to know about portable document formats, including how to make edits to your documents, the many types of PDFs, and more.

Part 1: What are the types of PDF standards?

In total, there are eight PDF standards; six of them are ISO Standards, while the other two come from various other organizations. Let’s take a look at each of them:


The Portable Document Format, commonly known as PDF, is a format of the document that was developed by Adobe in the 1990s.

This file format was developed with the intention of establishing a standard for the representation of documents and other types of reference material in a format that is not reliant on the application software, hardware, or operating system used to open or read the file.

Text, images, hyperlinks, form-fields, rich media, digital signatures, attachments, metadata, geospatial features, and 3D objects are some of the types of information that can be included in a PDF file and become a part of the source document. The PDF file format has the full capability to contain this information.


PDF/A is a version of the PDF file format that guarantees a document will always be reproduced in the same manner, regardless of the application that is used to do it.

Your documents will remain safe, accessible, and secure even in the long run since the information essential to show the document and its components, in the same manner, is incorporated in the file. This will ensure that your documents remain safe even in the long run.


PDF/E is an abbreviation that stands for "Engineering." In 2008, the standard for the creation of PDF-based engineering documents that may be used in a range of application fields was given the name ISO 24517 and published under the acronym PDF/E.

Workflows in geospatial analysis, construction, and manufacturing are examples of important fields that employ the PDF/E file format. The PDF/E standard offers a method for the exchange and preservation of engineering documents based on the PDF format. This mechanism is referred to as the "PDF/E mechanism."

PDF/E has support for interactive media, such as animations and 3D engineering model data, as part of its standard offering.


PDF/X is a standard that was launched in 2001 as part of ISO 15930 and contains a subset of the features of PDF. The printing and publishing businesses each had their own unique criteria, which were used as the basis for establishing and publishing the standard.

The various demands of the printing and publishing sectors were taken into consideration while developing the specifications for this standard's criteria. PDF/X mandates that the files that adhere to the standard be whole, also known as self-contained.

Because of this, it is necessary for the document to contain components such as the typefaces that are used on the page.

It is not possible to include content in PDF/X format that is three-dimensional or video-based. Due to the information it contains, it is essential that the PDF/X document be accurate.


The PDF/UA format, published as an International Standard in 2012 (ISO 14289), offers precise normative parameters for making PDFs accessible. Related to ISO 32000-1:2008, this standard is intended to be used in combination with it. Accessible PDF documents, PDF readers, and assistive technology are all included in the standard.

With the PDF/UA standard in place, every user, regardless of device, operating system, or application, should be able to access the information contained within a PDF file.

In addition to gaining the same benefit from the information as those without disabilities, users should be able to do so independently, efficiently, and without the help of others while utilizing the documents.

PDF files' content structures may be standardized, and the end user's technological resources can be maximized, to achieve this goal (including assistive technologies).


PDF/VT is a subset of the PDF file format designed for variable data printing (VDP) on desktop printers and industrial digital presses alike.

Variable and Transactional are what the V and T in PDF/VT refer to. The term "variable data printing" is used to describe any type of printing where some of the information is tailored to the individual reader. Particularly in direct mail campaigns, it sees heavy use. Invoices, statements, and promotional printing all fall under the category of transactional printing.


"PAdES" is an abbreviation for "PDF Advanced Electronic Signatures." PDF/A is a technical standard for a set of add-ons and constraints used in electronic signatures.

One useful feature of PAdES is that it allows digitally signed documents to be legally binding for extended periods of time, even if the underlying cryptographic techniques are compromised.

Long-Term validation refers to the ability to verify the signature on a document years or even centuries after it was signed, using current technology and methods.

PDF Healthcare

For the healthcare sector, there is the PDF/H standard, which was released as a best practice guide in 2008. It establishes norms for the collection, presentation, and exchange of healthcare information.

There has to be an established norm that facilitates communication between patients and their doctors. Security and privacy must be considered by the standard as well.

Health Insurance Portability and Accountability Act requirements must also be met (HIPAA). After all, one of the regulations calls for strict observance with regard to the protection of patients' health information.

Part 2: How to Turn PDF to PDF/A?

UPDF for Windows and Mac is the best applications to use to convert PDF to PDF/A. The application provides secure PDF conversion, exact formatting preservation, and conversion accuracy for professionals.

Enterprise-level encryption ensures the security of your data and keeps it private and secure. If you need to convert a scanned PDF to another editable format, this converter can do it. Thanks to the OCR functionality, this is now feasible. Since this is the case, it may also boast an exceptionally high degree of precision.

If you need to convert PDF to another format, you can download UPDF. UPDF can convert PDF to Word, Excel, PowerPoint, CSV, PDF/A, and so on. Now you can download it directly by clicking the download button below.

convert pdf into different types

Let's take a look at how to turn PDF into PDF/A:

  • Step 1: Download and install the UPDF application on your computer. Open the PDF file in the UPDF application by clicking on "Open File".
  • Step 2: When you have a PDF file open in UPDF, you may save it as a PDF by clicking the "Save as Other" icon in the program's right toolbar.
  • Step 3: When the "Save as Other" window appears, please click the "Save as PDF/A..." option. Now you may give the PDF/A file a new name and choose a new store location. To save a PDF on a computer as PDF/A, just click "Save".
save as pdf a

Above are the steps to turn PDF into PDF/A. You can download UPDF to follow these steps.

Part 3: An all-in-one PDF solution - UPDF

The following are the key features of UPDF:

View PDF

UPDF is an excellent PDF viewer and editor that allows you to read and edit PDF files. You may open several PDFs in separate tabs and access them all at once. You can choose to bookmark pages for easy access.

In addition, UPDF's adaptability means that the PDF may be made to match any screen resolution. It offers 4 different reading modes for PDF viewers.

Annotate PDF

UPDF also excels as an annotation application. It gives you the ability to underline, highlight, strikethrough, or hypertext any paragraph in your PDF file. When you use UPDF, you have access to all the necessary annotation tools to ensure that your colleagues fully understand your thoughts.

Convert PDF

The biggest and most recent addition to UPDF is the capability to quickly and easily convert PDF files to a wide variety of different formats. The OCR compatibility is the nicest part of this function because it makes converting scanned PDFs a more competent job.

Edit PDF

It's simple to make changes to the text and graphics in PDF files. You may use it to make changes to existing PDFs or create new ones completely.

Organize PDF page

You may easily reorganize and organize your PDF pages without encountering any difficulties if you make use of an efficient organizing option. You have the ability to rotate, rearrange, and reorganize the pages in your PDF.

Protect PDF

UPDF also allows you to password-protect your PDF files. It allows the highest level of encryption by offering you certain features to set the permissions about who can read or edit your PDF files.

Share PDF via link

Users of UPDF have the ability to add an electrical signature to their PDF files and then immediately share those files with their coworkers or friends by attaching them to emails or sharing PDFs via a links.

Advantages of UPDF:

  • The UPDF program runs on the latest technology and allows you to make reading and editing faster.
  • It is compatible with Windows, Mac, iOS, and Android. The cross-compatibility provides versatility in the usage of UPDF.
  • The UPDF program is packed with a lot of features like editing, annotating, organizing, converting, merging, splitting, and many more.
  • The free version of UPDF allows you to convert up to 5 documents for free.
  • UPDF is highly secure, reliable, and easy-to-use software.
  • The stability of UPDF is what makes it stand out from the rest of the PDF readers and editors.
  • The user interface of UPDF is delightful and easy. Even a non-tech person can easily use UPDF.
  • UPDF offers highly affordable pricing plans.
  • The features of UPDF are highly efficient and bug-free. Moreover, it gets frequent updates to further improve the user experience.


The UPDF is dedicated to its continuous development over the course of time, with the intention of providing the most effective solutions and enhancements to the modern problems that the vast majority of users are encountering with those already existing software programs.

This goal is intended to be accomplished in order to fulfill the commitment made to the development of the UPDF.

It's probable that if you've been longing for a very long time you could have the luxury of proofreading documents on a regular basis without having to make sacrifices to your level of comfort. You have the potential to achieve this objective with the assistance of a broad range of abilities that are offered by UPDF. We recommend you use UPDF for all your PDF needs.