pdf-security.html

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        <h1 class="text-3xl md:text-5xl font-bold text-white mb-6">
          PDF Security Tools - Protect & Secure Your PDFs Free
        </h1>
        <p class="text-lg md:text-xl text-gray-300 mb-8">
          Protect and secure your PDF documents with BentoPDF's comprehensive
          security tools. Encrypt with passwords, add digital signatures, manage
          permissions, remove sensitive data, and more. All security operations
          happen locally in your browser for maximum privacy. No cloud uploads,
          no data retention - your documents stay completely confidential.
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        All PDF Security Tools
      </h2>

      <div
        class="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-4"
      >
        <a href="/protect-pdf" class="tool-card">
          <i class="ph ph-lock text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Encrypt PDF</h3>
          <p class="text-gray-400 text-sm">Add password</p>
        </a>
        <a href="/unlock-pdf" class="tool-card">
          <i class="ph ph-lock-open text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Decrypt PDF</h3>
          <p class="text-gray-400 text-sm">Remove password</p>
        </a>
        <a href="/sign-pdf" class="tool-card">
          <i class="ph ph-pen-nib text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Sign PDF</h3>
          <p class="text-gray-400 text-sm">Digital signature</p>
        </a>
        <a href="/remove-restrictions" class="tool-card">
          <i class="ph ph-link-break text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Remove Restrictions</h3>
          <p class="text-gray-400 text-sm">Unlock editing</p>
        </a>
        <a href="/change-permissions" class="tool-card">
          <i class="ph ph-shield-check text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Change Permissions</h3>
          <p class="text-gray-400 text-sm">Set permissions</p>
        </a>
        <a href="/sanitize-pdf" class="tool-card">
          <i class="ph ph-broom text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Sanitize PDF</h3>
          <p class="text-gray-400 text-sm">Remove metadata</p>
        </a>
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          <i class="ph ph-stack text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Flatten PDF</h3>
          <p class="text-gray-400 text-sm">Merge layers</p>
        </a>
        <a href="/linearize-pdf" class="tool-card">
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          <h3 class="font-semibold text-white">Linearize PDF</h3>
          <p class="text-gray-400 text-sm">Optimize for web</p>
        </a>
        <a href="/remove-metadata" class="tool-card">
          <i class="ph ph-file-x text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">Remove Metadata</h3>
          <p class="text-gray-400 text-sm">Clean properties</p>
        </a>
        <a href="/pdf-layers" class="tool-card">
          <i class="ph ph-stack-simple text-4xl text-indigo-400 mb-2"></i>
          <h3 class="font-semibold text-white">PDF Layers</h3>
          <p class="text-gray-400 text-sm">Manage layers</p>
        </a>
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          Why Use BentoPDF PDF Security Tools?
        </h2>

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            <i class="ph ph-shield-check text-5xl text-indigo-400 mb-4"></i>
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              100% Privacy-First
            </h3>
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              All operations happen in your browser. Your files never leave your
              device, never uploaded to servers. Complete privacy guaranteed.
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              Unlimited & Free
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              Use all tools as many times as you want, with files of any size.
              No file limits, no tool limits. Completely free forever.
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              Lightning Fast
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              Browser-based processing means instant results. No waiting for
              uploads or downloads. Works offline after page load.
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              No Signup Required
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              Start using tools immediately. No account creation, no email, no
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          Frequently Asked Questions
        </h2>

        <div class="faq-list">
          <details class="faq-d">
            <summary class="faq-d-q">
              What's the difference between protecting a PDF with a password and
              restricting its permissions?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              A user password, set with
              <a
                href="/protect-pdf"
                class="text-indigo-300 hover:text-indigo-400"
                >Protect PDF</a
              >, is required to open the file at all. Permissions are flags
              stored inside the encryption that control what a reader can do
              after opening, such as printing, copying, editing, annotating, or
              filling forms, and they only take effect when an owner password is
              set. Change Permissions lets you allow or deny each action
              individually, while Protect PDF applies the strictest set as soon
              as you add an owner password.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              How strong is the password protection?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              Protect PDF and Change Permissions use 256-bit AES encryption, the
              PDF 2.0 standard, applied by QPDF running in your browser. The
              encryption itself isn't practical to brute-force, so the weak
              point is the password: use a long passphrase and send it through a
              different channel than the file. Permission flags are a separate
              matter, since they rely on the reader honoring them and some
              third-party tools ignore them.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              Can I remove a password from a PDF if I don't know it?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              No.
              <a
                href="/unlock-pdf"
                class="text-indigo-300 hover:text-indigo-400"
                >Unlock PDF</a
              >
              needs the password and then saves a copy with no encryption or
              restrictions left, and none of the tools crack or brute-force
              passwords. For a file that opens fine but blocks printing or
              copying, use Remove Restrictions instead, which asks for the owner
              password if the file has one.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              What's the difference between Sign PDF and a digital signature?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              Sign PDF places a drawn, typed, or uploaded signature image on the
              page, with an option to flatten it so nobody can move or delete it
              later.
              <a
                href="/digital-sign-pdf"
                class="text-indigo-300 hover:text-indigo-400"
                >Digital Signature</a
              >
              applies a cryptographic signature with your own X.509 certificate
              (.pfx, .p12, or .pem), which proves who signed and that the file
              hasn't changed since, and Validate Signature checks signatures
              already in a file. Certificate signing may need an internet
              connection to fetch the certificate chain, and self-signed
              certificates will show warnings in Adobe Reader.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              How do I redact text so it's actually gone?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              Use the redaction tool in the
              <a href="/edit-pdf" class="text-indigo-300 hover:text-indigo-400"
                >PDF Editor</a
              >, which permanently removes the marked content from the page
              instead of just covering it with a box. Redaction only deals with
              what's on the page, so if the file's properties, comments, or
              attachments could reveal the same information, run Remove Metadata
              or Sanitize PDF on the result as well.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              What's the difference between Remove Metadata and Sanitize PDF?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              <a
                href="/remove-metadata"
                class="text-indigo-300 hover:text-indigo-400"
                >Remove Metadata</a
              >
              strips only the document properties: title, author, dates,
              producer, XMP data, document IDs, and application-specific data,
              and it leaves pages, forms, links, and bookmarks untouched.
              Sanitize PDF goes further and can also flatten forms and delete
              annotations, embedded JavaScript, attachments, layers, links, and
              structure tags, with each item selectable. Both are irreversible,
              so keep your original file.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              What does flattening a PDF do, and when should I use it?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              <a
                href="/flatten-pdf"
                class="text-indigo-300 hover:text-indigo-400"
                >Flatten PDF</a
              >
              burns form fields and annotations (comments, highlights, stamps,
              sticky notes, signature fields) into the page content, so they
              look the same but can no longer be edited, moved, or removed. Use
              it after a form is filled in or a signature is placed and before
              you send the file, because there's no way to unflatten. Text stays
              selectable and searchable, and bookmarks are kept.
            </p>
          </details>
          <details class="faq-d">
            <summary class="faq-d-q">
              Are my passwords, certificates, or files sent to a server?
              <i data-lucide="plus" class="faq-d-icon"></i>
            </summary>
            <p class="faq-d-a">
              No. Encrypting, unlocking, sanitizing, and signing all run as
              WebAssembly in your browser, so the document, the password you
              type, and your certificate's private key stay on your device. The
              one network exception is Digital Signature, which may contact your
              certificate authority's servers to fetch the certificate chain;
              the document itself is still never sent.
            </p>
          </details>
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