PDF file cannot be opened

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There is a universal solution of your problem: PDF Repair Toolbox - The tool reads corrupted PDF files and saves all recovered information to a new file for Adobe Reader/Adobe Acrobat.

Hey friend,
Did you take back up of original PDF document? If you have the back up copy, then you can easily restore your corrupted PDF file. If not, then a good solution is required to recover data from this file. I was having the same problem with my PDF document, I searched fro the solution over the internet and luckily I got one. I would like to share it with you - PDF Repair Toolbox
https://www.repairtoolbox.com/pdfrepair.html
This post helped me to fix my damaged PDF file and I am sure you will also find it helpful.
Thanks.
PDF Repair Toolbox

What else do you think it could be but a corrupt file? Two programs say the file is corrupt....the file is corrupt. Have them resend the file if you can, otherwise it's lost.

Download pdf file from your email then, save to USB flash drive. Install pdf installer. download from google and install. After installing try to insert ur USB flash drive and open your pdf file.

Navigate to file manager, open documents folder and you should be able to locate the PDF file if you would closely look at all the files in there one by one.

Another option is to open the downloads folder within file manager and look inside, you should be able to identify the file in question

Last option is while within file manager, type into the search box ".pdf" (a dot followed by the letters PDF; a without the semicolons)

This should bring up/call out all PDF files inside your device; scan through to identify and in turn delete the corrupt PDF file

Help with PDF Documents Some documents on Maine.gov are provided in PDF format. In order to view or print PDF documents, you need the free Adobe Reader. Generally, you will find an alternative format is also provided for the document, such as Microsoft Word, HTML, or plain text. If you cannot access a document in PDF format and there is no alternative version, please contact the agency or contact the Maine.gov webmaster for assistance.
Adobe PDF-to-HTML Online Conversion Tool
We've provided solutions for some common PDF issues below.
General Tips:

• If you are having trouble opening a PDF document, one of the first things to try is updating your Adobe Reader to the latest version. You may also need to update your browser if you are using an older browser.
• Additional support is available on the Adobe Reader Support Page (Adobe.com).
• You may also want to read Adobe's more detailed troubleshooting tips.

Problem 1: Blank Page in Browser You have selected to download a file and you receive a blank page with a "Done" message at the bottom of the browser. This may be because you do not have enough space in your temporary internet file folder to complete the download.
Solution: Internet Explorer: Tools> Internet Options> Temporary Internet Files> select Delete Files
Netscape: Edit> Preferences> Under Category on the left Advanced> Cache> click Clear Memory Cache
Problem 2: Blank Page "%PDF" You received an error message containing "% PDF" or you have received a blank page while trying to download. This is due to a problem with your web browser not opening .pdf documents correctly.
Solution: Adobe Acrobat Reader 5.0: Edit> Preferences> General> Options> Web Browser Options> make sure the Display PDF in Browser box is not checked.
Adobe Acrobat Reader 6.0 and newer: Edit > Preferences > Internet > make sure the Display PDF in Browser box is not checked.
Problem 3: "Error Locating Object Handler" You receive an error message that says "Error Locating Object Handler" while trying to download a document. This is because there is a dependency with a plug-in for Adobe Acrobat while using Internet Explorer.
Solution: Please go to the following website for detailed instructions: http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262213
Problem 4: Unable to Print You have successfully downloaded the pdf, can view it on your computer screen but are unable to print. This is due to a post script error with your printer.
Solution: In any Acrobat Reader program: File > Print > check the Print As Image box > OK
Problem 5: "Adobe Reader could not open file" You received the error message "Adobe Reader could not open 'filename.pdf'" because it is either not a supported file type or because the file has been corrupted (for example, it was sent as an email attachment and wasn't correctly decoded).
Solution: Adobe Acrobat Reader 6.0: Edit> Preferences> Internet> make sure the Display PDF in Browser box is not checked.

uninstall Adobe Reader and reinstall it or download it from www.filehippo.com
also checked for the default file extension ...
change .PDF to open with ADOBE reader always ..
after u install the adobe reader and complete teh setup
rt click on the file that you want to open click on open with
select ADOBE reader as default format ..apply.... ok...this will work

This problem mostly occurs in downloaded PDF files. The problem represents that the file didn't download perfectly. So please consider for one more trail of downloading with out error and have fine