repair corrupted docs and pdfs

[berifarni]

this post a bit out of topic but i need to know how can i repair corrupted files listed in the title? i saw the files sizes are intact but the files cannot be opened with different apps. good suggestion needed.
the files are recovered from a failed toshiba hdd in a dell inspiron laptop. thxs in advance all good bros and sis.

[melvin]

Post a sample here.

[berifarni]

thxs all,

the sample pdf file is enclosed.

- What was the initial problem of the drive ? bad sectors, ddrescue found over few hundred GB of bad sectors.

- How did you recover it / the data ? ddrescue

- Was there any encryption ? no.

- Did you try to open the files with hex-editor to see the content ? no, i did not use hex editor.

- Was the system affected by some sort of Virus/Malware/Ransomware ? no.

- Did you manipulate firmware on the drive with firmware tool like clearing G-List or .... etc etc .... no clearing of g-list.

- Did you use software only sollutions / logic recovery and what software did you use (R-Studio, GetDataBack, etc ...) ? i only tried ddrescue from linux bootable usb.

Attachments

Translator Sample Test Handbook.pdf

(224.03 KiB) Downloaded 994 times

[HaQue]

here is your problem

[berifarni]

i supposed the first two bytes generally the header is missing. is there anyway to repair this?
i tried opening the file with cutepdf and adobe, it says the file is corrupted.
any good software tool to repair the file, the data is intact as can be seen from the hexa codes but header byte is missing, i actually think with different pdf apps may help.
besides, the file size is intact too.
may all kind souls please advise. what's your take?

here is your problem

hero2zero.PNG

[berifarni]

i relooked at the hex code and saw nothing coming out of the content as well, my bad but how do you explain the file size?

[pcimage]

bad sectors, ddrescue found over few hundred GB of bad sectors.

Would probably explain the empty files.

[berifarni]

thxs all for good advice. have a good day ahead.