Otključavanje PDF-a online
Uklonite lozinku i ograničenja s PDF-a čiju lozinku znate. Besplatno, privatno i brzo: sve se izvodi u vašem pregledniku, ništa se ne prenosi na poslužitelj i ništa ne trebate instalirati.
Uklonite lozinku i ograničenja s PDF-a čiju lozinku znate. Ispustite datoteke u okvir iznad, po želji prilagodite postavke i preuzmite rezultat. FansBond alat „Otključavanje PDF-a” radi u potpunosti u vašem pregledniku, pa vaše datoteke nikad ne napuštaju uređaj. Besplatan je, ne traži račun i ništa ne trebate instalirati.
- Privatnost na prvom mjestu: datoteke se obrađuju na vašem uređaju i nikad se ne prenose na poslužitelj.
- Ništa ne trebate instalirati: radi u Chromeu, Safariju, Firefoxu i Edgeu na računalu, Androidu i iPhoneu.
- Besplatno, bez registracije, bez vodenog žiga i bez dnevnih ograničenja.
- Prihvaća: PDF.
- Sprema kao: PDF.
What Otključavanje PDF-a does
Otključavanje PDF-a removes the encryption from a PDF so it opens without a password and can be printed, copied, edited, merged or compressed. It is meant for your own files, for example a bank statement or payslip that arrives protected with a password you know.
The file is decrypted with qpdf. You enter the password once, and qpdf writes a new copy without encryption or permission restrictions, named with -unlocked. Content, links, bookmarks and form fields stay as they were. The tool cannot find or bypass a password you do not know.
Kako koristiti alat: Otključavanje PDF-a
- Ispustite PDF datoteke u okvir.
- Podesite postavke alata „Otključavanje PDF-a”.
- Kliknite Primijeni. PDF se obrađuje na vašem uređaju.
- Preuzmite novi PDF.
When to use Otključavanje PDF-a
- Remove the password from monthly bank statements so they can be merged into one file for a mortgage or loan application.
- Unlock a payslip or tax document from your employer so it can be uploaded to a portal that rejects protected files.
- Remove printing and copying restrictions from a PDF you created yourself and no longer need to protect.
- Unlock a protected file before compressing, splitting or signing it, because those tools cannot work on encrypted PDFs.
Settings explained
- Password
- Enter the password used to open the file, or its owner password. Leave it empty for PDFs that open without a password but block printing, copying or editing; those restrictions can be removed without one.
- Add more files
- Add several protected PDFs to unlock them in one run. The same password is used for every file, so this works best for documents that share a password, such as statements from one bank.
Što je PDF?
PDF (Portable Document Format) je format za dokumente predstavljen 1993. godine (razvio: Adobe). Datoteke imaju nastavak .pdf.
PDF was created by Adobe to show documents the same way on any device and printer. A PDF file describes pages with text, fonts, vector graphics and images at fixed positions. It became an open ISO standard in 2008, and there are special variants such as PDF/A for archiving and PDF/X for printing.
PDF is the right choice for documents that must look the same everywhere, such as contracts, invoices, forms, manuals, reports and files for printing. It also supports digital signatures, fillable forms, comments and password protection.
PDF is hard to edit, because text is stored as positioned pieces, not as flowing paragraphs. Converting a PDF to Word may change the layout. Scanned PDFs contain pictures of text, not real text, unless OCR has been applied.
All major web browsers open PDF files directly. Windows, macOS, iOS and most Android phones include a PDF viewer, and Adobe Acrobat Reader and many free apps can view, annotate and fill PDF forms on all platforms.
Zašto odabrati FansBond: Otključavanje PDF-a
Većina online pretvarača prenosi vaše datoteke na svoje poslužitelje. FansBond alat „Otključavanje PDF-a” umjesto toga sav posao obavlja u vašem pregledniku, uz WebAssembly i moderne API-je preglednika. Datoteke ostaju na vašem uređaju, što je sigurnije za privatne fotografije, ugovore i neobjavljene radove, a često i brže jer se ništa ne mora prenositi ni preuzimati.
Nema čekanja u redu, vodenih žigova ni računa. Kad se stranica učita, alat nastavlja raditi čak i uz sporu vezu.
Tips for the best result
- If a file needs a password to open and you leave the field empty, the tool reports that the PDF could not be processed. Enter the password and try again.
- Passwords are case sensitive. If the password is rejected, check Caps Lock and the keyboard language before you try again.
- Banks and employers often build the password from your date of birth, customer number or tax number. Check the email or letter that came with the file.
- Without encryption, anyone who gets the unlocked copy can open it. Store it in a safe place, or delete it when you no longer need it.
How Otključavanje PDF-a works in your browser
Encryption and decryption use qpdf, a widely used open-source PDF toolkit, compiled to WebAssembly. Protected files use 256-bit AES, the strongest encryption method in the PDF standard.
The password you type is used only inside your browser tab to encrypt or decrypt the file. It is never sent anywhere and is not stored after you close the page.
Privacy and security
Most online converters upload your files to a server, process them there and keep a copy for some time. Otključavanje PDF-a works differently: the code is downloaded to your browser once, and your files are read and written only on your device.
You can check this yourself: after the page has loaded, turn off your internet connection and the tool still works. This makes it safe for contracts, IDs, medical records, private photos and unreleased work.
Često postavljana pitanja
Je li alat „Otključavanje PDF-a” besplatan?
Da. Alat „Otključavanje PDF-a” na FansBondu potpuno je besplatan, bez registracije, bez vodenog žiga i bez dnevnog ograničenja.
Prenose li se moje datoteke na poslužitelj?
Ne. Datoteke se obrađuju u pregledniku na vašem vlastitom uređaju. Nikad se ne šalju FansBondu ni bilo kome drugome.
Trebam li instalirati neki program?
Ne. Radi u svakom modernom pregledniku (Chrome, Safari, Firefox, Edge) na Windowsu, Macu, Linuxu, Androidu i iPhoneu.
Postoji li ograničenje veličine datoteke?
Nema fiksnog ograničenja. Budući da se obrada odvija na vašem uređaju, stvarna granica ovisi o njegovoj memoriji. Većina mobitela može obraditi datoteke od nekoliko stotina megabajta, a računala i znatno veće.
Can I unlock a PDF if I forgot the password?
No. Files that need a password to open can only be unlocked with the correct password. The tool does not guess or crack passwords, and an AES-encrypted PDF cannot practically be opened without it. Ask the sender for the password or for an unprotected copy.
What is the difference between an open password and restrictions?
An open password, also called a user password, is needed to view the file. Restrictions are set with an owner password and only limit actions such as printing or copying, while the file still opens normally. This tool removes both; only the open password must be entered.
Does unlocking change the content?
No. qpdf only removes the encryption. Pages, text, images, links, bookmarks, form fields and metadata stay the same, and the file size usually changes only a little. A certificate-based digital signature in the file will show as invalid, because the bytes of the file change.
Srodni alati
- Obrezivanje PDF-aObrežite margine stranica PDF-a.
- Izdvajanje stranica iz PDF-aKopirajte odabrane stranice u novi PDF.
- Izravnavanje PDF-aIzravnajte polja obrazaca i bilješke kako bi PDF svugdje izgledao isto i ne bi se mogao uređivati.
- Spajanje PDF-aSpojite više PDF datoteka u jednu, redoslijedom koji odaberete.
- Brisanje stranica iz PDF-aIzbrišite stranice koje vam ne trebaju iz PDF-a.
- Razdvajanje PDF-aRazdvojite PDF na pojedinačne stranice ili na raspone koje odaberete.
Podijelite sve što stvarate jednom FansBond poveznicom
Stavite svoje pretvorene datoteke, videozapise i poveznice na jednu besplatnu link-in-bio stranicu koja izgleda sjajno na svakom uređaju.
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