How to Repair or Recover Data From a Corrupted PDF File
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If you can’t open a PDF, it might be because it’s corrupted What Is Data Corruption And How To Prevent It What Is Data Corruption And How To Prevent It Data corruption is more common than you might think, and it could happen to you when you least expect it. Heed these tips before it's too late! Read More . If you haven’t backed up your data, discovering a broken file can be a nightmare. We’re going to help you fix your PDF through tools and Windows techniques.

It may be possible to fully repair the entire PDF, restoring it to its original state, or you might only be able to extract elements and rebuild the rest. Anything you can get, right?

After checking out these tips, pop into the comment section at the end to let us know if you’ve ever suffered PDF corruption and how you managed to resolve it.

Check Your PDF Reader for Errors

Are you sure that the problem is with the PDF file? Instead, it might just be that the program you’re using to view the PDF is playing up.

Repair Adobe Acrobat Reader

The most common PDF viewer is Adobe Acrobat Reader. That’s not necessarily because Adobe offer the best program This Is Why You Don't Need Adobe Reader This Is Why You Don't Need Adobe Reader Adobe Reader is bloated, slow, and a liability. In short, it's unnecessary. Do you need a PDF Reader at all? We show you how to open PDF files without Adobe Reader. Read More , but simply because it’s what most people associate with the format. The PDF file type was created by Adobe in the 1990s and became an open standard in 2008. If you’re using Adobe Acrobat Reader, let’s run some quick troubleshooting.

First, check the program is running the latest version by launching it and going to Help > Check for Updates. You’ll either be told the program is up to date or that there are updates to install. If there are, go ahead and install them. Try opening your PDF now.

How to Repair or Recover Data From a Corrupted PDF File adobe repair installation 670x317

If that doesn’t work, keep Adobe Acrobat Reader open and navigate to Help > Repair Installation. It might be that the files the program relies on to run have become corrupted and this method will try to patch them up.

Still no luck? Press Windows key + I and click Apps. Search adobe acrobat reader, click it on the list and click Uninstall. Then head to the Adobe website to download and install the latest version. If your PDF still doesn’t open after this, we can safely dismiss Adobe’s program as being the problem.

Try Using an Alternative Reader

Adobe Acrobat Reader is by no means your only option for viewing PDFs. It’s worth trying out a different program to see if that’s able to open the PDF.

In the past we’ve rounded up alternative lightweight PDF readers 4 Very Light Alternatives to Adobe Reader 4 Very Light Alternatives to Adobe Reader Are you still using Adobe Reader for PDF documents? It's time to move on to an alternative PDF reader that is lightweight, launches quickly, and yet keeps your documents save. Read More that are focused on the reading of a PDF rather than anything extraneous. Two of the best choices, and both free, are Foxit Reader and Sumatra PDF. Download these and give them a shot with your PDF.

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You might also find that Okular and Evince are able to read your PDF file when other software cannot. This is because they use a different rendering method to display PDFs.

If you’re still having problems then it’s time to start focussing on repairing the PDF file itself or at least scraping it for what you can save.

Repair or Recover the PDF File

We’ve previously written about corruption with Office files Access & Recover Corrupt Office Files with These Tips Access & Recover Corrupt Office Files with These Tips Your important document is corrupted and you don't have a backup? Not all is lost! You can try to repair the file or find a backup you didn't know you had. Read More , but some of those techniques can also apply to PDFs, namely looking for previous versions of the file and using third-party applications.

Restore a Previous File Version

If your PDF used to work and has become corrupted, you could try restoring an old version. Windows 10 has a built in back up facility that could help. You can access it by pressing Windows key + I and navigating to Update & Security > Backup.

If you haven’t been using the Backup feature then you can’t retroactively use it to restore your PDF. Nevertheless, it might be wise to enable it now. You can find out about this and more in our ultimate Windows 10 backup guide The Ultimate Windows 10 Data Backup Guide The Ultimate Windows 10 Data Backup Guide We've summarized every backup, restore, recovery, and repair option we could find on Windows 10. Use our simple tips and never despair over lost data again! Read More .

If you have enabled it, you can try using the File History feature to roll back your PDF to a previous version. To do this, open File Explorer and navigate to your PDF. Right click it and click Restore previous versions.

This will bring up a list of all the old versions of the file contained within your backup. You can Open the copies to check them out and then use the Restore button to bring them back to life.

A similar technique would be to use a data recovery program What Is Data Recovery And How Does It Work? What Is Data Recovery And How Does It Work? If you've ever experienced a major loss of data, you've probably wondered about data recovery -- how does it work? Read More , like Recuva, that will scan your drive and look for old files that have been deleted from your system. If you had an old copy of the PDF file that you’ve removed, this technique might be fruitful.

Try Using PDF Repair Apps and Utilities

There are applications out there that will try to repair your PDF. Some of these don’t require you to download any software and can be run in the browser, like PDFaid, Repair PDF, and PDF Tools Online. Give these all a shot, but if the corruption is severe then they may not be able to help.

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You can also try specialist file repair programs like FileRepair1. This will scan the PDF, identify the failure, and fix what it can. It’s not always successful in every case, but you may find it helpful.

Extract the Data From the PDF File

If you’re not able to repair the entire PDF, then you may still be able to extract elements like the text and images.

For the text, you can use programs that will convert your PDF to a Word file and allow you to get the text that way. However, I find one of the best tools is actually the online application PDF to Word Converter offered by Nitro; although some characters may look a bit funky depending on the type of corruption.

How to Repair or Recover Data From a Corrupted PDF File Ppkpdfconverter

If your PDF contains images, try following our guide on how to extract images from a PDF How to Extract Images From a PDF and Use Them Anywhere How to Extract Images From a PDF and Use Them Anywhere PDF files can be containers for embedded images. We show you how to extract images from a PDF file and save them to your desktop. Read More . Again, this may have varying results depending on the level of corruption, but it’s definitely worth seeing what can be pulled out.

Save Your Corrupted PDF Document!

Hopefully these methods have been useful in saving your PDF. You might not have been able to recover everything (such is the bane of corruption), but at least you may have saved elements of the file.

Remember, you should always have a stable Windows backup plan The Windows Backup and Restore Guide The Windows Backup and Restore Guide Disasters happen. Unless you're willing to lose your data, you need a good Windows backup routine. We'll show you how to prepare backups and restore them. Read More in place to ensure that corrupted data doesn’t cause your world to come crashing down. Always have a secondary copy to restore from.

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