"File kharaab hai aur repair nahi ho saki" kuch nahi batata ki gadbad kya hui. Vyavhaar mein, jo PDF nahi khulta usmein aksar giney-chuney nishaanon mein se ek gaayab hota hai: %PDF header jise viewer sabse pehle dekhta hai, ant ka %%EOF nishaan, startxref pointer jo batata hai ki object table kahan hai, ya trailer jo document root ka naam leta hai. Yeh tool har ek ko alag se batata hai, kehta hai ki parser page tree bana paaya ya nahi, aur phir kram se do repair aazmaata hai: object graph ko naye document mein copy karna, aur wo fail ho to har wo page dobara khinchna jo renderer ab bhi paint kar sakta hai.
Features
Header, trailer, cross-reference pointer aur end-of-file nishaan jaanchta hai
Aisa startxref batata hai jo truncated file ke ant ke aage ishaara karta ho
Encryption pehchanta hai, jise objects dobara likhne se pehle hataana hota hai
Mail gateways ka aage joda ya aakhri %%EOF ke baad ka kachra kaat deta hai
invoice-scan.pdf — downloaded over a dropped connection
Output
End-of-file marker missing; startxref points to byte 481,209 in a 402,880-byte file. Rebuilt: 6 pages recovered.
File ke ant se aage ishaara karta cross-reference offset truncated download ki pehchaan hai.
Common errors aur troubleshooting
Repair ne apeksha se kam pages ka document banaya. — Sirf wahi pages bach sakte hain jinke objects bache. Truncated file cut ke baad ka sab kho deti hai, aur usse dobara banane ko kuch bachta nahi.
Repair kehta hai file encrypted hai. — Objects ko padhe bina dobara nahi likha ja sakta. Pehle password hataayein, phir repair karein.
Repaired file ka selectable text chala gaya. — Iska matlab object rebuild fail hua aur pages dobara khinche gaye. Baad mein text recognition chalakar use phir searchable bana lein.
Kuch bhi wapas nahi mila. — Agar ek page bhi render nahi hota to nuksaan content tak pahunch chuka hai. Original dobara download karein ya backup se laayein — koi reconstruction gaayab bytes gadh nahi sakti.
Aksar pooche jaane wale sawaal
PDF aam taur par kis wajah se tootta hai?
Beech mein ruka download ya copy, jo file truncate kar deta hai, aur mail gateways jo aage-peeche text jod dete hain. Dono structure check mein gaayab nishaan ya galat offset ki tarah dikhte hain.
Ki file aise sajayi gayi thi ki browser baaki download se pehle page ek dikha sake. Rebuild karne se wo sajawat chali jaati hai, jisse sirf loading speed par farq padta hai.
Kya repaired file original jaisi hi hogi?
Pages waise hi honge. Objects ka arrangement dobara likha jaata hai, isliye byte size aur linearisation badalte hain — repair ka matlab hi yahi hai.
Kya isse deleted PDF wapas mil sakta hai?
Nahi. Yeh us file par kaam karta hai jo aapke paas ab bhi hai; deleted file laana disk recovery software ka kaam hai.
Related tools
PDF Metadata Editor — PDF ka title, author aur baaki fields dekhein, badlein ya hataiye.