Is this PDF unlocker free?

Yes. 100% free forever — no trial, no premium tier, no per-file charge, no daily quota. Unlock as many PDFs as you want, as often as you want. Ad-supported so it stays free for everyone.

Do I need an account to unlock a PDF?

No. No signup, no login, no email, no captcha, no credit card. Open the page, drop your PDF, enter the password if needed, download the unlocked file.

Is my PDF uploaded to a server?

No. The entire decryption happens locally in your browser. Your PDF never leaves your device — there is no server-side copy because we don't have a server for your files.

Is my password sent to a server?

No. Your password is entered into an input field in this browser tab and used only for local decryption via the Web Crypto API. It is never transmitted anywhere, never logged, never stored. When you close this tab it's gone.

How do I remove password protection from a PDF?

Drop the locked PDF on this page. If it only has an owner password (permission restrictions — printing, copying, editing blocked, but the file opens without a password), we detect that automatically and strip the restrictions with one click. If it has an open password (requires a password to view), enter it in the prompt and click Unlock. The output is a plain unprotected PDF.

What is the difference between an owner password and a user password?

A user password (also called open password) must be entered to view the PDF — without it, the file can't be opened at all. An owner password only restricts what you can do with an already-open PDF: print, copy text, edit, annotate, and so on. Many PDFs distributed from corporate systems are owner-locked but not user-locked — you can open them but can't print or copy. Our unlocker handles both, and auto-detects owner-only locks so you don't have to guess which password to enter.

Can you unlock a PDF without the password?

Yes, but only if the PDF is owner-only locked (restrictions applied but no password required to open). In that case we strip the /Encrypt dictionary using the blank user password that owner-only PDFs implicitly have. If the PDF genuinely requires a password to open (user-locked), no legitimate tool on the web can unlock it without that password — we can't either. Tools that claim to "crack" an unknown password are either scams, extremely slow brute-forcers, or operating on PDFs that are merely owner-locked and don't actually need a password in the first place.

Will the unlocked PDF have a watermark?

No. Your unlocked PDF contains exactly the pages and content from the original document with nothing added. No watermark, no inserted logo, no 'unlocked with…' text, no ad page at the end. The only difference versus the input is that the /Encrypt dictionary is gone.

What encryption formats are supported?

AES-256 R6 V5 (PDF 2.0 / ISO 32000-2 — the modern standard used by Adobe Acrobat, Microsoft Print to PDF, and most corporate systems today) and RC4-128 R3 V2 (legacy, used by older tools). If your PDF uses AES-128 R4 V4 (an uncommon middle-aged variant) we'll surface a clear error — the workaround is to open the PDF in your native viewer with the password, then re-save via Print-to-PDF to produce an unencrypted copy.

Is there a file size or PDF size limit?

No artificial limit. The only ceiling is your device's memory. A modern laptop handles multi-hundred-MB PDFs without trouble. Mobile browsers comfortably handle documents up to ~200 pages; older phones may run short on memory above 1000 pages.

Can I unlock a PDF on my phone?

Yes — open this page in your phone's browser, tap Select PDF, choose the file, enter the password if prompted, and tap Unlock. Works on iPhone Safari, iPad, Android Chrome, and every other modern mobile browser. No app install required.

Does it remove print, copy, and edit restrictions?

Yes. Those restrictions are stored in the PDF's /Encrypt dictionary. When we strip the encryption, the restrictions go with it. The output PDF allows all operations your viewer supports — printing, text copy, commenting, editing, extraction for accessibility, page assembly. Think of it as producing a brand-new PDF from the same visible content.

Is unlocking a protected PDF legal?

Unlocking a PDF you own, or one you have permission to modify, is legal and is the entire reason this tool exists. Common legitimate use cases: you password-protected your own document and forgot the lock, IT sent you a print-restricted PDF you need to annotate for a meeting, you received a signed contract and need to reprint it with corrected formatting. Respecting the original owner's intent is on you — we don't judge the use case, but we also can't help you bypass protections on content you don't own the rights to distribute.

Does it work offline?

Yes, once the page has loaded. The unlocker runs entirely in your browser — you can disconnect from the internet and keep working. Great for sensitive PDFs (medical, legal, financial) you'd rather process without a network connection active.

What's the difference between unlocking and decrypting a PDF?

They're the same operation with different names. 'Decrypt' emphasizes the crypto-technical side — running AES or RC4 in reverse over the encrypted object streams. 'Unlock' emphasizes the user-facing outcome — a PDF that no longer needs a password. This tool does both at once: it decrypts every object stream AND removes the /Encrypt dictionary, leaving a plain unprotected PDF.

Is this the best PDF unlocker?

For privacy-first workflows where you don't want your password or your PDF to touch anyone else's server, we think so — and we explicitly compare ourselves to iLovePDF, Smallpdf, Adobe, Syncfusion, and PDF2Go below. For a cloud-synced workflow with history across devices, Adobe Acrobat online may fit better. Pick the tradeoffs that match your actual needs.

Xauv PDF — Tshem Password, Ceev & Private

Tshem tawm lo lus zais tiv thaiv los ntawm PDF - hauv zos, hauv koj tus browser, nrog xoom uploads

Drop a password-protected PDF and we remove the lock. Owner-only restrictions (print / copy / edit disabled) are detected automatically and removed without asking you for anything. Open-password PDFs unlock when you type the password — the password stays on your device, never sent anywhere. 100% in-browser. No upload, no signup, no watermark, no file limit.

100% Dawb Mus Ib Txhis Tsis Tas Yuav Nkag 100% Ntawm Koj Lub Cuab Yeej Kev Nyab Xeeb Siab

Cov ntaub ntawv yeej tsis tawm hauv koj lub cuab yeej

AES-256 encryption

Peb saib tsis tau koj cov ntaub ntawv

Tsis tas yuav muaj kev sib txuas

Tso koj PDF ntawm no

los yog

PDF · Tsis muaj upload — 100% hauv zos · Lo lus zais nyob ntawm koj lub cuab yeej.

Yuav Ua Li Cas Xauv PDF thiab Tshem Tawm Kev Tiv Thaiv Password

1. Tso koj tus password tiv thaiv PDF

Luag lub xauv PDF mus rau qhov chaw poob saum toj no, los yog nyem rau xauj. Cov ntaub ntawv thauj khoom rau hauv koj tus browser - tsis muaj dab tsi raug xa mus rau lub server.

2. Nws pib-ntaus tus tswv vs tus neeg siv xauv

Peb tshawb xyuas PDF's encryption phau ntawv txhais lus. Yog tias nws yog tus tswv-tsuas-xauv (kev tso cai txwv tab sis tsis muaj tus password xav tau qhib), peb qhib nws tam sim ntawd - tsis muaj lus nug. Yog tias nws xav tau tus password qhib, peb qhia koj tus password.

3. Ntaus tus password (yog xav tau)

Nkag mus rau tus password qhib LOSSIS tus tswv password - PDF spec lees txais ib qho. Koj tus password siv hauv zos los ntawm Web Crypto API hauv koj tus browser. Nws yeej tsis kis, nkag mus, lossis khaws cia.

4. Download tau lub xauv PDF

Nyem Unlock PDF. Cov ntaub ntawv decrypted yog tsim hauv zos nrog rau /Encrypt phau ntawv txhais lus stripped. Qhib rau txhua tus neeg saib PDF yam tsis tau hais kom tus password - luam tawm, luam tawm, hloov kho, thiab sau ntawv txwv tsis pub tawm tag nrho.

Yog vim li cas qhov no yog qhov zoo tshaj plaws dawb PDF Unlocker

100% kev ua haujlwm hauv zos

Koj PDF THIAB koj tus password nyob hauv koj lub cuab yeej. Sib piv: iLovePDF, Smallpdf, Adobe, Syncfusion, thiab PDF2Go tag nrho upload ob qho tib si. Thaum koj qhib PDF, qhov ntawd yog ob qhov teeb meem ntiag tug - lawv luv luv tuav cov ntaub ntawv thiab tus yuam sij. Peb tsis: peb tsis tuaj yeem pom ib qho vim peb tsis muaj server rau koj cov ntaub ntawv.

Tus tswv-tsuas yog auto-detect

Feem ntau cov kev tiv thaiv PDFs koj ntsib (cov koom haum, tsoomfwv cov ntaub ntawv, cov ntaub ntawv txwv tsis pub luam tawm) yog tus tswv-xauv, tsis yog tus neeg siv-xauv - lawv qhib yam tsis muaj lo lus zais tab sis thaiv kev luam ntawv thiab luam tawm. Peb kuaj pom qhov ntawd txiav thiab qhib nrog xoom input. Cov neeg sib tw yuam kom koj ntaus ib yam dab tsi txawm tias tsis xav tau tus password.

AES-256 thiab RC4 ob leeg txhawb nqa

Cov txheej txheem niaj hnub (AES-256 R6 V5, siv los ntawm Adobe Acrobat, Microsoft Office, thiab txhua tus tsim tawm PDF tsis ntev los no) ua haujlwm. Cov cuab yeej cuab tam (RC4-128 R3 V2) kuj ua haujlwm rau cov ntaub ntawv qub. Yog tias koj PDF siv lub hnub nyoog nruab nrab AES-128 R4 V4 variant peb ntog ib qho kev daws teeb meem kom tsis txhob ua ntsiag to.

Tsis muaj cov ntaub ntawv loj lossis nplooj ntawv txwv

Tso 5-nplooj PDF, 500-nplooj ntawv phau ntawv, lossis ntau pua-MB pob raug cai. Tsuas yog khi los ntawm lub cim xeeb ntaus ntawv. iLovePDF thiab Smallpdf cap pub dawb siv ob peb txoj haujlwm hauv ib teev thiab cov ntaub ntawv loj nyob ib ncig ntawm 25-200 MB. Peb tsis ua.

Free, Forever

Tsis muaj kev sim, tsis muaj qib hwm, tsis muaj nqi ib daim ntawv. Xauv ntau PDFs raws li koj xav tau, ntau npaum li koj xav tau. Ad-txhawb kom nws nyob dawb rau txhua tus.

Tsis muaj tus account, tsis muaj email

Pib xauv tam sim ntawd. Tsis muaj npe, tsis muaj email ntes, tsis muaj credit card. Txoj kev desktop software siv los ua haujlwm ua ntej "kev sim dawb" dhau los ua cuab.

Ua haujlwm offline

Thaum nplooj ntawv no tau thauj khoom koj tuaj yeem txiav tawm ntawm is taws nem thiab lub unlocker tseem ua haujlwm. Zoo rau rhiab PDFs (kev kho mob, kev cai lij choj, nyiaj txiag) koj xav tau txheej txheem yam tsis muaj kev sib txuas hauv network.

Tsis muaj watermark ntawm cov zis

Lub xauv PDF muaj raws nraim cov ntsiab lus ntawm koj cov tswv yim. Tsis muaj logo ntxiv, tsis muaj footer, tsis muaj "xauv nrog ..." kab, tsis muaj nplooj ntawv tshaj tawm thaum kawg. Ntxuav cov zis, ib txwm.

Tib code raws li tus editor

Txoj kev decryption niaj hnub yog tib txoj kev cai uas lub ntsiab PDF Edit editor siv los qhib cov ntaub ntawv encrypted. Ib qho kev siv, sib ntaus sib tua-kuaj ntawm ntau txhiab lub ntiaj teb tiag PDFs. Peb rov siv nws ntawm no es tsis xa ib qho thib ob, cov ntawv xeem tsawg dua.

Ob hom PDF Password, piav qhia

Tus neeg siv tus password (qhib tus password)

Qhov no yog ib tug neeg feem ntau txhais tau tias "PDF password". Cov ntaub ntawv raug kaw kaw - koj tus neeg saib yuav ceeb toom koj ua ntej koj tuaj yeem pom cov ntsiab lus. Cov peev txheej: cov tsev txhab nyiaj encrypting nqe lus, cov tswv ntiav xa cov ntawv nyiaj hli, cov kws lij choj sib pauv cov ntaub ntawv. Txhawm rau qhib ib qho ntawm no, koj yuav tsum paub tus password. Thaum koj ntaus nws rau hauv, peb decrypt cov ntsiab lus ntws hauv zos, strip lub /Encrypt phau ntawv txhais lus, thiab tso tawm ib qho dawb PDF.

Owner password (kev tso cai password)

Qhov no yog subtler. Cov ntaub ntawv qhib ib txwm - tsis muaj lo lus zais tam sim - tab sis qee qhov haujlwm raug thaiv: luam ntawv, ntawv luam, kho, annotation, nplooj ntawv rho tawm. Ntau lub tuam txhab lag luam tsim cov tswv-xauv PDFs los ntawm lub neej ntawd (xav tias "tsis txhob luam tawm yam tsis tau tso cai" ceeb toom). Koj tuaj yeem qhib cov no nrog ZERO input: tso cov ntaub ntawv thiab peb pom tias tus neeg siv lo lus zais yog khoob, strip cov kev txwv, ua tiav. Cov neeg sib tw feem ntau tseem hais kom koj ntaus ib yam dab tsi, txawm tias tsis muaj dab tsi xav tau.

Cov ntaub ntawv nrog ob lub xauv

Ib PDF tuaj yeem muaj ob qho tib si qhib lo lus zais THIAB tus tswv tus password cais rau kev tso cai. Lub PDF spec hais tias IB TUG ib tug tuaj yeem qhib tag nrho cov ntaub ntawv. Peb cia koj nkag mus rau qhov twg koj paub - peb tus decryptor sim tus neeg siv-password txoj kev ua ntej, ces poob rov qab mus rau tus tswv-password txoj kev. Ib daim teb, ob qhov teeb meem daws.

Cov ntaub ntawv uas tus password tsis paub tiag tiag

Yog hais tias PDF yog tus neeg siv-xauv thiab koj tsis paub tus password, tsis muaj cov cuab yeej raug cai tuaj yeem qhib nws. Lub encryption yog lej muaj zog (AES-256, lossis RC4 uas tsis muaj zog tab sis tseem xav tau tus yuam sij). Cov cuab yeej uas thov kom "rov qab" tus password tsis paub yog (a) brute-forcing common passwords, uas siv sij hawm ntau hnub thiab tsuas yog ua haujlwm rau cov passwords tsis muaj zog, lossis (b) kev dag ntxias. Yog tias koj tau poob koj tus kheej lo lus zais, cov lus teb tiag tiag yog thov ib daim ntawv theej tshiab los ntawm leej twg xa nws - lossis khiav phau ntawv txhais lus tawm tsam nrog lub cuab yeej tshwj xeeb ntawm koj lub tshuab.

PDF Edit vs iLovePDF, Smallpdf, Adobe, Syncfusion, PDF2Go

Yam Tshwj Xeeb	PDF Kho kom raug	iLovePDF	Smallpdf	Adobe	Syncfusion	PDF2Go
PDF upload rau lub server?	No — 100% local	Yog lawm	Yog lawm	Yog lawm	Yog lawm	Yog lawm
Tus password xa mus rau lub server?	No — stays on device	Yog lawm	Yog lawm	Yog lawm	Yog lawm	Yog lawm
Nws pib-ntaus tus tswv-tsuas xauv?	Yes — no prompt needed	Tsis yog - ib txwm hais	Tsis yog - ib txwm hais	Tsis yog - ib txwm hais	Tsis yog - ib txwm hais	Tsis yog - ib txwm hais
AES-256 txhawb?	Yes	Yog lawm	Yog lawm	Yog lawm	Yog lawm	Yog lawm
Xav tau Account?	Never	Dawb tier txwv	2 txoj haujlwm / teev (dawb)	Dawb tier txwv	Tsis muaj	Dawb tier txwv
Watermark ntawm qhov tso tawm?	No	Tsis muaj	Tsis muaj	Tsis muaj	Tsis muaj	Tsis muaj
Ua haujlwm offline tom qab load?	Yes	Tsis muaj	Tsis muaj	Tsis muaj	Tsis muaj	Tsis muaj
Tsis txwv cov ntaub ntawv loj?	Yes (device memory only)	Dawb tier: 200 MB	Dawb tier: 5 MB	Dawb tier txwv	Dawb tier txwv	Dawb tier: 100 MB
Clear yuam kev ntawm unsupported encryption?	Yes — with workaround	Ib nrab	Ib nrab	Ib nrab	Tsis muaj	Ib nrab

The point isn't that iLovePDF or Adobe are bad tools — they're not. The point is that if you care about not uploading your PDF and your password in the same request to someone else's server, you need a local-only unlocker. We built one. Nobody else in the top ten has.

Leej twg qhib PDFs?

Tshem tawm cov kev txwv luam tawm thiab luam tawm

Cov qauv kev lag luam, tsoomfwv cov ntaub ntawv, thiab cov ntaub ntawv kev kawm feem ntau tau muab faib nrog cov ntawv luam tawm / theej thaiv "rau kev ruaj ntseg" - txawm tias cov ntsiab lus nws tus kheej tsis nkag siab. Yog tias koj xav tau luam daim foos koj tau txais lossis luam ib daim ntawv tsocai los ntawm PDF koj tuav raws cai, qhib nws thiab cov kev txwv yuav ploj mus.

Koj tus kheej lo lus zais, tsis nco qab lawm

Koj lo lus zais tiv thaiv PDF xyoo tas los, tus neeg saib xyuas tus password tsis khaws nws, thiab tam sim no koj qhib tsis tau koj cov ntaub ntawv. Yog tias muaj lub caij nyoog lub xauv yog tus tswv nkaus xwb (feem ntau thaum qhov kev tiv thaiv tau ntxiv los ntawm "txhim kho" es tsis yog "encrypt nrog lo lus zais"), tso rau ntawm no - peb tuaj yeem qhib nws nrog xoom input. Yog tias nws yog tus neeg siv khoom xauv tiag tiag, koj yuav xav tau tus password.

Rov kos npe rau daim ntawv cog lus

Daim ntawv cog lus tuaj txog kaw los ntawm tus neeg xa khoom txoj haujlwm ua haujlwm. Koj qhib nws, countersign, ces paub tias koj PDF tus saib yuav tsis cia koj txuag vim lub xauv. Xauv thawj zaug, txee kos npe thib ob, xa rov qab.

Annotating ib daim ntawv siv

Cov ntaub ntawv tshawb fawb, ebooks, thiab siv PDFs qee zaum muab faib nrog cov lus qhia raug thaiv. Xauv kom ntxiv koj cov ntaub ntawv kawm, qhia txog, lossis cov lus qhia hauv zos - koj cov lus piav qhia tsis tau muab rov qab rau qhov qub.

Ua ke nrog lwm yam PDFs

Feem ntau PDF sib koom ua ke cov cuab yeej tsis kam suav nrog cov ntaub ntawv kaw lus password, txawm tias koj paub tus password. Xauv ib zaug, sib koom ua ke yam tsis muaj kev sib txhuam. Ua haujlwm zoo raws li cov kauj ruam npaj ua ntej peb /merge-pdf cov cuab yeej.

Archiving rau kev nkag mus ntev

Cov ntaub ntawv tiv thaiv tus password uas koj txhawj xeeb txog (ua se rov qab, cov ntaub ntawv kho mob) yog ib qho tsis nco qab lo lus zais kom rov qab tsis tau. Rau cov ntaub ntawv ntiag tug koj tswj hwm, qhib thawj zaug thiab khaws cov ntawv dawb hauv koj tus kheej cov ntaub ntawv khaws tseg tsis txhob cia siab rau PDF's built-in scheme.

Screen nyeem ntawv nkag tau yooj yim

PDF "extract for accessibility" tso cai tswj xyuas seb cov neeg nyeem ntawv tuaj yeem nkag mus rau cov ntawv nyeem. Tus tswv-xauv PDFs feem ntau thaiv nws. Xauv tshem tawm qhov kev txwv - cov ntawv nyeem tau nkag mus rau cov cuab yeej pabcuam.

Kev luam ntawv rau hom ntawv loj dua

Qee qhov PDFs raug kaw kom tsuas yog tso cai rau kev luam ntawv qis. Xauv tshem tawm qhov kev txwv, yog li koj tuaj yeem xa mus rau lub tshuab luam ntawv lossis lub tshuab luam ntawv yees duab ntawm kev ncaj ncees.

Qhib cov ntaub ntawv keeb kwm-encrypted

Qub RC4-encrypted PDFs los ntawm thaum ntxov 2000s qee zaum tsis qhib kom huv hauv cov neeg saib niaj hnub. Xauv strips qhov qub txeeg qub teg encryption thiab outputs ib tug dawb PDF uas ib tug niaj hnub saib tuav tsis fuss.

Xauv PDF ntawm iPhone, Android, Mac, Windows, thiab Chromebook

Peb PDF unlocker ua haujlwm ntawm txhua lub cuab yeej nrog lub browser niaj hnub - Windows, Mac, Linux, Chromebook, iPad, iPhone, thiab Android. Tsis muaj app nruab, tsis muaj plugins, tsis muaj cai admin. Thaum nplooj ntawv tau thauj khoom koj tuaj yeem txiav tawm ntawm Is Taws Nem thiab txuas ntxiv xauv - txhua yam khiav hauv zos ntawm koj tus browser Web Crypto API. Tus password nkag siv tus qauv password teb, yog li koj lub cuab yeej tus neeg saib xyuas tus password tuaj yeem sau tau yog tias nws muaj daim ntawv pov thawj khaws tseg.

Yuav ua li cas Browser-raws li PDF Xauv ua haujlwm tiag?

Koj PDF tau nyeem rau hauv koj tus browser lub cim xeeb. Yog tias nws muaj /Encrypt phau ntawv txhais lus, peb txheeb xyuas qhov tsis muaj encryption (algorithm version, kho dua, tus neeg siv / tus tswv hash cov ntaub ntawv). Rau AES-256 R6 V5, peb khiav PDF 2.0 lo lus zais-validation niaj hnub siv SHA-256/384/512 thiab AES-128-CBC sib xyaw kom tau txais cov ntaub ntawv yuam sij los ntawm koj tus password, tom qab ntawd siv tus yuam sij rau AES-256-CBC decrypt txhua qhov khoom siv encrypted. Rau RC4 R3 V2, peb khiav cov keeb kwm MD5 key-derivation thiab RC4 kwj-decrypt ntawm txhua yam khoom. Thaum tag nrho cov kwj dej yog cov ntawv dawb, peb rov tsim kho PDF yam tsis muaj /Encrypt phau ntawv txhais lus. Cov zis yog tus qauv PDF 1.7 uas qhib rau txhua tus neeg saib niaj hnub. Txhua tus crypto khiav hauv koj tus browser ntawm Web Crypto API - tsis muaj tus neeg rau zaub mov koom nrog txhua kauj ruam, thiab koj tus password yuav tsis kis.

Cov lus nug nquag

Kuv yuav qhib PDF dawb li cas?

Tso koj lub xauv PDF rau ntawm nplooj ntawv saum toj no. Yog tias nws yog tus tswv-tsuas-xauv, peb qhib nws cia li. Yog tias nws muaj tus password qhib, sau tus password (nws nyob ntawm koj lub cuab yeej) thiab nyem Xauv PDF.

Kuv yuav tshem tus password ntawm PDF li cas?

Ib yam li kev qhib qhib - peb lub cuab yeej tshem tawm /Encrypt phau ntawv txhais lus nkaus. Qhov tshwm sim PDF qhib yam tsis muaj lo lus zais sai thiab tsis muaj kev txwv luam / theej / kho.

Puas yog kuv PDF uploaded nyob qhov twg?

Tsis yog. Decryption khiav hauv koj tus browser. Koj PDF yeej tsis kov peb cov servers vim peb tsis muaj server rau koj cov ntaub ntawv.

Puas yog kuv tus password xa mus rau lub server?

Tsis yog. Tus password siv hauv zos los ntawm Web Crypto API. Nws yeej tsis kis, nkag mus, lossis khaws cia. Kaw lub tab thiab nws ploj mus.

Kuv puas tuaj yeem qhib PDF yam tsis muaj tus password?

Yog lawm, yog tias PDF yog tus tswv-tsuas yog xauv (kev tso cai txwv tab sis tsis muaj tus password yuav tsum qhib). Peb ntes tau cov ntawd. Rau cov neeg siv xauv PDFs tiag tiag, tsis muaj cov cuab yeej raug cai tuaj yeem qhib yam tsis muaj tus password.

Dab tsi encryption txoj kev txhawb nqa?

AES-256 R6 V5 (tus qauv niaj hnub) thiab RC4-128 R3 V2 (legacy). Yog tias koj PDF siv AES-128 R4 V4 peb mam li qhia cov lus yuam kev meej thiab qhia txog kev daws teeb meem.

Cov zis yuav muaj watermark?

Tsis yog. Koj qhov xauv PDF yog raws nraim koj cov tswv yim nrog cov encryption stripped — tsis muaj cov ntsiab lus ntxiv.

Puas muaj qhov txwv cov ntaub ntawv loj?

Tsis muaj kev txwv dag. Koj lub cuab yeej nco yog lub qab nthab nkaus xwb.

Kuv puas tuaj yeem qhib PDF ntawm kuv lub xov tooj?

Yog lawm. Ua haujlwm ntawm iPhone Safari, iPad, Android Chrome, thiab txhua qhov browser mobile niaj hnub. Tsis muaj app nruab yuav tsum tau.

Nws puas ua haujlwm offline?

Yog, thaum nplooj ntawv tau loaded. Unlocking khiav tag nrho hauv koj tus browser.

Dab tsi yog qhov txawv ntawm tus tswv password thiab tus neeg siv tus password?

Tus neeg siv lo lus zais thaiv qhib cov ntaub ntawv. Tus tswv lo lus zais tso cai qhib tab sis blocks luam tawm / theej / kho / rho tawm haujlwm. Lub PDF spec lees txais ib qho rau kev qhib tag nrho - peb tus decryptor sim cov neeg siv ua ntej, tus tswv thib ob.

Puas yog kev qhib PDF raug cai?

Tau yog tias koj muajPDFlossis muaj kev tso cai los hloov nws. Tsis yog yog tias koj hla kev tiv thaiv ntawm cov ntsiab lus koj tsis muaj cai rau. Peb tsis txiav txim rau cov ntaub ntawv siv tab sis peb kuj pab tsis tau koj ua txhaum cai.

Kuv puas tuaj yeem qhib PDF uas tsuas yog txwv tsis pub (tsis yog tus password-encrypted)?

Yog - qhov ntawd yog tus tswv tsev nkaus xwb. Peb ntes nws txiav thiab tshem tawm cov kev txwv tsis tau thov dab tsi.

Tus unlocker puas khaws daim ntawv teb thiab kos npe?

Yog rau daim foos teb, tsis muaj rau kos npe digital. Daim ntawv teb tau khaws cia. Cov kos npe digital yuav raug siv tsis raug vim kev kos npe khi rau qhov tseeb byte kwj ntawm tus thawj encryptedPDF- decrypting hloov cov bytes. Yog tias koj qhov kev ua haujlwm nyob ntawm qhov kos npe tseem siv tau, tsis txhob qhib cov ntaub ntawv; es tsis txhob qhib nws hauv tus saib uas txhawb kev nyeem cov ntawv kos npe-thiab-encrypted.

Kuv puas tuaj yeem rov tiv thaiv lub xauv PDF tom qab?

Yog lawm. Peb lub ntsiab editor's Protect feature siv tshiab AES-256 encryption nrog koj tus kheej xaiv lo lus zais. Round-trip (xauv → kho → rov tiv thaiv) yog ib qho kev ua haujlwm ntau.

Qhov no puas yog qhov zoo tshaj plaws PDF unlocker?

Yog - rau kev ceev ntiag tug-thawj ua haujlwm uas tsis yogPDFlossis tus password yuav tsum kov lub server, peb xav li ntawd. Rau huab-synced workflows thoob li,Adobe Acrobatonline yuav haum zoo dua. Xaiv qhov twg yog qhov kev sib pauv hloov pauv raws li koj xav tau tiag tiag - peb qhia meej meej piv rau peb tus kheej rau txhua tus neeg sib tw loj saum toj no.

Last updated: 2026-05-13

About this tool: PDF Edit is built by a small independent team who were tired of PDF tools that required accounts, watermarked outputs, and uploaded files (and passwords!) to servers we didn't control. Everything here runs in your browser — your PDF and your password stay on your device, there's no file limit, no signup, and no watermark on the output. The decryption code reuses the exact same implementation our main editor uses to open encrypted documents, so it's battle-tested on real-world PDFs. Free forever, ad-supported. Reach out via the footer links with bugs or feature requests — we read every message.

Koj qhov xauv PDF tau npaj txhij!

✏️ Kho Cov Ntawv 📎 Sib txuas ✂️ Faib 📦 Zaiv

I don't like greed — or that we've lost privacy and ownership over our own tools. So I'm building software to combat this. No hidden accounts, no data mining, no paywalls. Just software that does what it has to.

Your password never left this tab. Tsis txawm ib zaug.

100% ua haujlwm hauv zos

Txhua lwm online PDF unlocker uploads koj cov ntaub ntawv THIAB koj lo lus zais rau lawv cov servers, decrypts nws nyob ntawd, thiab muab koj ib qho txuas download. Peb khiav tag nrho hauv qhov browser tab - PDF thiab lo lus zais nyob hauv lub cim xeeb lub sijhawm tag nrho. Tsis muaj server-sab luam vim peb tsis muaj server rau koj cov ntaub ntawv.

Tsis muaj sim, tsis muaj dag, tsis muaj phom

Dawb mus ib txhis, txhawb nqa los ntawm kev tshaj tawm. Tsis muaj account, tsis muaj kev ntes email, tsis muaj credit card, tsis muaj dej cim ntawm cov tawm. Yam koj siv yog txhua yam peb muab.

Ua haujlwm offline, ua haujlwm txhua qhov

Thaum lub nplooj ntawv no tau nkag lawm koj tuaj yeem txiav internet thiab lub sib txuas tseem ua haujlwm. Windows, Mac, Linux, Chromebook, iPad, Android — txhua lub browser tshiab. Tsis txhob nruab, tsis txhob plug-in, tsis xav tau tus tswj cai.

Tsis muaj account
Tsis muaj upload
Password yeej tsis xa
Tsis muaj dej cim
Tsis muaj txwv
Tsis muaj haujlwm rho ntaub ntawv
100% ntiag tug
Ua haujlwm offline

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