Repair A Corrupted PDF File: Causes, Solutions & Quick Fixes

The abbreviation for "Portable Document Format" is "PDF." The Portable Document Format (PDF) file was developed by Adobe in 1990 using the computer language PostScript. This file format encapsulates all of the elements (text, graphics, vectors, and so on) that are required to display the document in a single layout.

It is simple to distribute, and there are no restrictions placed on the operating systems that may use it. It provides a better degree of protection to documents compared to other formats.

The fact that it is not dependent on any particular platform, that it can be viewed using free software, that it may be password-protected, etc. are all advantages of using this format.

Because of these benefits, this format is rapidly becoming one of the most preferred choices for the exchange of documents.

As the development of PDF mentioned above, there are a lot of unexpected accidents happened, for example, PDF file corrupted due to uncertain circumstances. Then, repairing a corrupted PDF file is inevitable, you can look into the article and do some precautions for protecting PDF files.

Part 1. What Does It Mean If a File is Corrupted?

A file that has been damaged and is not functioning as it should be is said to have been corrupted. This may occur with any kind of file, from papers to software files to files that are used by the operating system.

Occasionally, the difficulties need more in-depth troubleshooting than just a simple restart of the system, although this is the exception rather than the rule.

Each and every one of the files stored on your computer has a certain organization and assortment of data. The files function normally if everything is placed in the appropriate manner.

Nevertheless, if incorrect information is entered into a file, or if the right information is stored in the incorrect position, this will have an effect on the file and how it is shown.

Sometimes a corrupted file won't open at all, or it may seem jumbled and illegible. Other times, the file's contents may be completely unreadable. This does not necessarily indicate that the core application is damaged.

For instance, Microsoft Word may be unable to open a specific document but may be able to open other documents normally.

Part 2. Why Is My PDF File Corrupted?

let's examine some of the reasons why your PDF files may be susceptible to lose or damage.

Errors When Downloading

Some mistakes may arise during the download of a PDF file, corrupting the document. Unstable internet connectivity is one of these issues. It might potentially be the result of a concurrent download interfering with the download.

Utilization of Incompatible Software

If you attempt to open or generate a PDF file using incompatible software, the file may be altered, hence becoming corrupted. To open PDF files, it is essential to utilize the appropriate software, such as UPDF.

Encryption by a Number of Email Service Providers

Some email service providers encrypt large files, including PDF files, on occasion. This is to expedite the transfer process. The issue is that they are not decoded on the receiving end, thus they will seem corrupt.

Hard Disk Difficulties

Hard drive failures are the most prevalent issue here. After a slight system failure, some data is lost. If the missing information was part of the PDF, it will be corrupted and unusable. The hard drive might also completely lose the file.

There are several causes for hard disk failures, the most prevalent being:

  • Inconsistent power supply
  • Absent or deteriorating sectors
  • System errors
  • Before producing or receiving a PDF file, you must verify that your disk is in good condition.

Virus and Malware

Viruses and other malicious software damage a file on a computer by altering or replacing it. If your PDF file is among those impacted, it will be corrupted. Always keep your antivirus software up-to-date, particularly if you often use the Internet or external storage.

Opening the Same File with Different Applications

Experts have determined that this is one of the less frequent reasons your PDF file might be faulty. Each program that opens a PDF file makes incredibly slight adjustments to the file so that it conforms to the software's user interface.

If you repeatedly access the same file with different applications, it will ultimately get corrupted as a result of major modifications.

Part 3. How Do I Repair a Corrupted PDF File?

If your PDF file becomes corrupted due to any of the aforementioned causes, you may restore it using the relevant procedures and tools. Below are four free methods for repairing damaged PDF files.

Examine Some Alternative PDF reader Software Programs

If you are dealing with a situation that is comparable to the one described above, then before you think about anything else, you should give some thought to determining whether or not the programs that are utilized to read these PDF documents are operating correctly. This should be done before you think about anything else.

And if the problem continues to occur in the reader apps, you may want to think about trying out a different third-party PDF Reader. It is likely to assist you in moving closer to resolving the issue.

Bring Back the Earlier Version of The File

If you have the PDF file saved to your Windows 10 computer, you may use the backup software that is included as part of the standard installation of the operating system. It will assist you in restoring past versions of the PDF file that were in good health.

Change the Format of the PDF

This is not an adequate answer to the issue at hand, although it may be of assistance in some circumstances. When restoring the whole PDF is not your primary objective, this approach might be of use to you.

Your objective in this section will be to extract the essential components included inside the PDF file. These components may include Images, Graphs, Texts, and so on.

Conversion is the most effective method for removing individual components from a PDF file. Because a Word file supports practically all of the components that are included in a PDF file, you are able to convert the PDF file into a Word file.

For the purpose of doing this, it is not difficult to track down a respectable file converting program over the internet.

Part 4. A Productive and All-in-one PDF Tool - UPDF

You may read PDF files anywhere and at any time, whether on vacation, when relaxing in the park, while driving, etc. The smart alternative to paper books may be accessed on a mobile device, eliminating the need to carry them about. UPDF can do this. You can download it for a trial.

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There are other advantages to using UPDF:

Easier Extract and Copy Text

Have you ever discovered anything in a book so relevant that you wished you could copy and paste it someplace more easily accessible? This is possible while reading PDF books, in addition to copying content, you can also extract PDF image to text.

Share More PDFs

UPDF has also made sharing more convenient. In addition to borrowing PDFs from friends or libraries, one may also request the PDF link or download the file through Google.

Rapidly Explore Relevant Word

When reading something in PDF format, it is possible to search for any term and locate it in under one minute. In contrast, you must exert a great deal of effort to read each line of the PDF to discover your favorite word!


You want to read something on your way to school or the workplace, but you can't because you don't have enough room or the volumes are too heavy. You may now read PDFs on your mobile device or tablet at any location.


People no longer borrow or purchase books from libraries or stores. Why would you spend money on rather pricey paper books when you can access a book on your smartphone, tablet, or another smart device? PDFs are an excellent alternative to paper books, especially if you cannot buy paper books or are thrifty.

Edit and Annotate

When borrowing something from a friend or the library, you are required not to scribble on them and return them unmarked. Read PDF with UPDF and do anything you like! Everything is available, from annotation to editing to highlighting.

Using a variety of color highlighting choices, you may emphasize the sections you like the most or deem most significant. Download and try it today!

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Part 5. FAQs about Corrupted PDF File

How Do You Check If a PDF is Corrupted?

There are a few ways to check if a PDF is corrupted. One way is to open the PDF in a PDF reader and then go to File > Properties. Under the Summary tab, you should see a list of errors (if any) that have been detected in the file.

Another way to check for errors is to open the PDF in Preview on a Mac, or in Microsoft Word on a PC. Then go to File > Properties and click on the Details tab. You should see a list of errors (if any) that have been detected in the file.

Can I Recover a Corrupted File?

It depends. If the corruption is minor, then it's possible to recover the file with a data recovery program. However, if the corruption is more severe, then the file may be lost permanently.

If you think your file may have been corrupted, it's important to act quickly! The sooner you start trying to recover the file, the better your chances of success. And remember to always back up your files regularly - that way you'll be prepared if something goes wrong.

How Do I Clean up a Corrupt File?

If you just want to delete the corrupted file, try using the "rm" command in Terminal. First, open Terminal by pressing Command + Spacebar and typing "Terminal." Then, type in the following command and hit Enter:

rm filename

If you're not sure what the name of your corrupted file is, you can try browsing it with Finder and looking at the name in the title bar.

If deleting the file doesn't solve your problem, or if you have other files that are also corrupted, you can try restoring them from a backup. Time Machine is a built-in feature of macOS that automatically creates backups of your computer on a regular basis. To restore a file from a backup, then select the file you want to restore and click the "Restore" button.

If you don't have a backup, or if your backups are also corrupted, you can try using data recovery software to recover your files. Data recovery software can often recover files even when they've been deleted or corrupted.

Why Do PDFs Fail to Load?

There can be a variety of reasons why pdfs fail to load, but one common reason is that the pdf file is corrupted. Another common reason is that the computer does not have the correct software installed to open the pdf file. Finally, if there is a problem with the internet connection, this can also prevent pdfs from loading properly.

How Do I Fix a Damaged PDF File that Won't Open?

PDF files can become damaged for a number of reasons, such as being opened in an incompatible program or having been corrupted during transmission. If you're having problems opening a PDF file, there are a number of things you can try to fix the problem:

  • Save the PDF file to your computer and try opening it again.
  • Try different PDF readers.
  • If the file was sent to you as an email attachment, try downloading it to your computer and opening it from there.
  • Copy and paste the text of the PDF into a word processing document and save that document. Then try opening the saved document in a PDF reader.

How Do I Restore a PDF?

It is a recommended best practice to generate several backups of your file across all of your devices and to keep each of those backups periodically updated.

Therefore, in the event that your data is accidentally destroyed or lost, you won't have to give it a second thought before resorting to your backup to retrieve it.

In a similar vein, if you've misplaced your PDF file, you may quickly retrieve it from a backup copy you've made in the past.

In addition, you are able to generate backups on a variety of different storage media, both internal and external, such as USB drives, hard disks, and so on. You might also save them using a service that provides storage in the cloud.


Protecting PDF files is essential to people's work, since repairing corrucpted files may consume users a lot of time, choose superior functioned PDF tool is a sensible choice, which not only provide secure environment to edit PDF files, but also save your precious time!

The best PDF tool is UPDF. With its innovative features and a rich toolset, UPDF contains everything you might need. It has a user-friendly interface and fast document opening speed, which can also protect PDF file and ensure the secure environment given you best experience with PDFs. Let's download it and try to use today!

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