Repair PDF
Rewriting the structure of a readable PDF.
This is a best-effort rewrite. No guarantee to restore missing bytes, lost pages or badly damaged files. If warning appears, check all pages carefully.
How to use Repair PDF?
The function of Repair PDF is to rewrite the structure of the PDF in a readable form. This facility is provided in a separate page on PDF Saathi so that you can read the correct input, output and required limits. The method written below is according to the actual tool's behavior, there is no guarantee of perfect conversion or approval.
Steps and output
Select PDF, enter opening password if there is one. From Repair the engine will try to write a new file after reading the document structure. Result: rewritten PDF, if parsing is successful. Set aside a safe copy of the original file before starting work. Selecting the wrong page or version may require rework, so match the file name and content first. Start with a small sample first. Do not close the tab while the tool is running. If you see an error, read it; Do not consider getting incomplete results as success.
Where is caution necessary?
This is a best-effort rewrite. No guarantee to restore missing bytes, lost pages or badly damaged files. If warning appears, check all pages carefully. After downloading, open the new file in a separate viewer. Match page count, orientation, small text, names, dates and important numbers with the original document. Mere downloading of the file is not proof of correct result. If the output is to be sent to a government form, office, school or customer, also check the current file-size and format requirements of that place. If important information has been cut out, appears too light or is misplaced, recreate it from the original.
Privacy and safe use
In this tool, document processing happens in your browser. The file and password are not sent to any conversion server. For the first time, internet is required to download engine files; OCR language data is also downloaded. Ads, chat and translation are separate online features of the site. Putting a private document into AI chat or translation is not the same as local PDF processing. Work only after reading the limits given on this page. Browser memory is different on every device, so no fixed speed or guaranteed result can be given for very large files. Download the new file after processing. Complete the test before replacing the original. Change someone else's document only if you have their permission.
Frequently asked questions
Will every damaged PDF be fixed?
No. If the engine cannot read the file then repair will not be possible.
Will the original file be changed?
No. Save the new output copy separately. Keep the original safe and read it before sending the final result.
What if an error occurs on a large file?
Try with a smaller sample or fewer pages. If memory is less then run it on another device. Do not use incomplete output after error.