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How to fix a PDF file that doesn’t convert?

PDF files have become a standard for sharing and converting documents across different platforms. However, not all PDFs are created equal, and sometimes you might encounter PDF files that take longer to convert or simply refuse to convert.

Fortunately, there are solutions available to help you fix and optimize problematic PDFs. In this article, we’ll explore how you can use the iLovePDF Repair tool and Adobe Acrobat DC to resolve PDF conversion issues.

1. Use the iLovePDF Repair tool

iLovePDF is an online platform offering a wide range of PDF tools, including a PDF Repair tool. Here’s how you can use iLovePDF Repair to fix a PDF that doesn’t convert:


Visit the iLovePDF website

Open your web browser and go to the iLovePDF Repair tool:

iLove PDF repair toll dashboard

Alternatively, go to the iLovePDF, and among the many options available choose the ‘Repair PDF’ tool on the iLovePDF dashboard.

iLove PDF tool

Upload the PDF

Upload your PDF by clicking the “Select PDF File” button,

iLove PDF repair toll dashboard

or simply drag and drop your file here.

iLove PDF repair toll dashboard

After uploading the PDF file, click on the ‘Repair PDF’ button.

Select a file to repair the PDF

iLovePDF will analyze and attempt to repair your PDF file.

Repairing a PDF file

It will take just a few seconds to repair.

Completed repairing PDF process

Download the repaired PDF

Once the repair process is complete, you can download the repaired PDF and save it to your computer.

Download the repaired file

Try converting again

Try to convert the repaired PDF file to an online flipbook on your Publuu account and check if the issue is resolved.


If the conversion is still not successful after repairing the PDF file, please try saving it as an Optimized PDF in Adobe Acrobat DC before uploading it to Publuu, as shown below:

2. Optimizing PDF with Adobe Acrobat DC

Open the problematic PDF file with Adobe Acrobat DC and click on the ‘Menu’ located in the top-left corner of the screen.

Optimizing PDF in Adobe Acrobat

Then select ‘Save as other’,

Saving the file as other

and choose the ‘Optimized PDF’ option.

Saving the file as optimized PDF

After that, a pop-up window will appear.

PDF Optimizer window

Tick all the boxes which contain an element you are having an issue with:

PDF Optimizer window

and click the ‘OK’ button.

PDF Optimizer window


Then you can save your optimized file,

Save your PDF file


upload it back to Publuu, and enjoy your online flipbook!

Upload to Publuu

You may be also interested in:

How to prepare PDFs to create the best quality flipbooks?
Flipbooks on mobile devices

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