What types of PDF passwords can you recover?

We recover user (open) passwords that prevent you from viewing the PDF. These are the only passwords that actually encrypt the document content. Owner (permissions) passwords that restrict printing or copying can usually be removed instantly using built-in browser workflows — no recovery service needed.

How long does PDF password recovery take?

Recovery time depends entirely on the encryption type and password complexity. Legacy 40-bit RC4 PDFs (Acrobat 2-5) are recovered in approximately 5 minutes with guaranteed success. Modern AES-256 PDFs with weak passwords (dictionary words, names, dates) are typically found within 24 hours. Complex AES-256 passwords with 12+ random characters are computationally infeasible to recover with current technology.

What if my PDF uses AES-256 encryption?

AES-256 is the strongest PDF encryption standard, used in Acrobat X and later. It employs PBKDF2 key stretching with SHA-256 and random salts, making brute-force attacks extremely slow. Recovery success depends heavily on password complexity. If you remember any hint about the password — even a partial pattern or theme — our Deep Recovery + AI mode can incorporate that information to dramatically improve success rates.

Can you recover passwords for PDFs created with any software?

Yes. We support PDFs created with Adobe Acrobat, Foxit PhantomPDF, LibreOffice Draw, Apple Preview, Microsoft Edge Save-as-PDF, Google Chrome Print-to-PDF, and any other PDF authoring tool that implements the ISO 32000 PDF encryption standard.

Is my PDF document safe during recovery?

Yes. We extract only the encrypted header (the encryption dictionary containing the cryptographic metadata) needed for password recovery. Your actual document content — text, images, form fields, signatures — is never accessed, read, viewed, or stored by our system. All uploads are encrypted in transit using TLS 1.3. Customer content is deleted as soon as it is no longer needed and no later than 14 days after upload. Terminal content is generally removed within 72 hours; delivery access may expire earlier.

What is the difference between owner and user passwords?

A user password encrypts the document content and prevents opening the PDF entirely. An owner password only flags certain permissions (printing, copying, editing) in the PDF metadata — the content is still unencrypted and viewable. Chrome, Firefox, and Edge can bypass owner restrictions by printing to PDF or using developer tools. Our service only handles user (open) passwords.

Do older PDFs have higher recovery success rates?

Yes, significantly. PDFs created with Adobe Acrobat 2-5 (1994-2000) use 40-bit RC4 encryption, which we can break with 100% guaranteed success in about 5 minutes. The 40-bit key space is small enough that precomputed lookup tables (Thunder Tables) can recover the encryption key directly without even attacking the password. We have never failed to recover a 40-bit RC4 PDF.

How does online recovery compare to using hashcat or John the Ripper?

Free tools like hashcat and John the Ripper are powerful but require significant technical expertise: you must extract the PDF hash (which differs by PDF version), configure the correct attack mode, install compatible GPU drivers, and let your personal computer run continuously for days or weeks. Our service handles all of this automatically on dedicated GPU hardware. For a single PDF, the time and complexity cost of DIY tools almost always outweighs the service fee.

Can you recover a PDF password if I only remember part of it?

Absolutely. Partial password knowledge is one of the most powerful recovery inputs. If you remember the password length, character set restrictions, a substring, a theme (e.g., 'my dog's name with a year'), or date-related patterns, our Deep Recovery + AI mode builds targeted attack rules around that information. This can reduce recovery time from centuries to hours.

What happens if you cannot recover my PDF password?

If our Deep Recovery + AI plan exhausts all attack strategies without finding the password, you pay nothing — no upfront fee is refunded because it covers compute costs, but the success fee of $0 is charged. For Guaranteed Recovery (40-bit RC4), if we cannot recover the password for any reason, the entire process is free. We also provide a detailed report of the attack strategies attempted so you know what was tried.

PDF Password Recovery

Online PDF Password Recovery

Recover access to a password-protected PDF you own. Fast Check tests common passwords first, while targeted recovery supports encryption from legacy RC4 through modern AES-256. Review proof before choosing a paid result.

All encryption types

High-performance GPU cluster

Results within 24h

Any PDF creator supported

Quick answer

First identify the PDF protection

PDF documents can use different encryption versions or a permissions password. Uploading the file lets us identify the protection first and show the recovery path that fits it.

Recovery process

How it works

1
Upload Your PDF
Upload your password-protected PDF through our TLS 1.3-encrypted upload form. Our system automatically detects the PDF version, encryption algorithm (RC4-40, RC4-128, AES-128, or AES-256), key length, and estimates recovery difficulty. A free Fast Check runs immediately, testing the 10,000 most common passwords and all 4-digit PIN combinations at zero cost.
2
Server-Powered GPU Recovery
Your file enters our dedicated GPU compute cluster. Depending on the encryption type, we deploy dictionary attacks with intelligent word-mangling rules, mask attacks targeting known patterns, brute-force for short key spaces, and a Deep Recovery + AI mode for complex AES-256 files. Legacy 40-bit RC4 PDFs are cracked in approximately 5 minutes using precomputed lookup tables.
3
Get Your Password
Once the password is found, you receive it via email immediately. You only pay the success fee ($49.99) if we successfully recover your password — no recovery, no charge. Simple 4-digit PINs and the top 10,000 most common passwords are FREE if discovered during the Fast Check phase. Your PDF content is never viewed, stored, or accessible to anyone during the process.

Legacy Encryption (Fast Recovery)

Older PDF formats can follow a different recovery path than newer documents. The encryption type is identified from the file before a recovery option is offered.

40-bit RC4 (Acrobat 2-4, 1994-2000) — cracked in minutes with precomputed Thunder Tables. 100% guaranteed success.
128-bit RC4 (Acrobat 5-6, 2000-2003) — RC4 has known statistical weaknesses; dictionary and mask attacks are highly effective.
40-bit guaranteed 100% success — we have never failed to recover a 40-bit RC4 PDF. If we cannot crack it, there is no charge.

Modern Encryption (Variable Recovery Time)

Modern PDF protection is designed to resist broad guessing. Any details you remember can make a targeted search more relevant.

AES-128 (Acrobat 7-9, 2004-2008) — secure algorithm but password validation uses a single SHA-256 round. GPU-accelerated dictionary attacks can test millions of candidates per second.
AES-256 (Acrobat X+, 2010-present) — uses PBKDF2 with SHA-256 and 48-byte random salt. Each password attempt is computationally expensive, requiring tens of thousands of hash iterations.
Password hints dramatically improve success rates. If you remember any fragment — a theme, a year, a pet name — our Deep Recovery + AI mode incorporates that into custom attack rules.

Common situations

Common PDF Recovery Scenarios

PDF password protection is ubiquitous across professional and personal contexts. Our service helps in these common situations:

Tax returns signed with a digital certificate where the certificate password is forgotten
Legal contracts and court documents protected before email transmission, with the password lost over time
Medical records and insurance forms where the patient no longer remembers the password set years ago
Bank statements and invoices from financial institutions that require password protection for PDF delivery
Academic research protected by a professor who is no longer available to provide the password
Corporate financial reports and board presentations archived after an employee departure

Frequently Asked Questions

Next step

Ready to Recover Your PDF Password?

Upload your protected PDF and regain access to your documents. Free analysis included — no credit card required.

Upload PDF File View All Pricing