PDFinvoice.pdf · open
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Password-protect a PDF in 5 seconds.
AES-256 encryption. Pick the password, pick what others can do. Same PDF, now locked.
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lock 256-bit SSLauto_delete Auto-deleted in 1hverified_user GDPR compliant
TrustpilotTrustScore 4.8 · 5,247 reviews
Open PDF in. Encrypted PDF out.
Stop sending PDFs naked. Lock it once. Send it safe.
Contracts, payslips, invoices, medical records. You decide who reads, prints, copies or edits. Encryption is AES-256, the same standard banks use. Anyone without your password sees nothing.
PDFinvoice-protected.pdf · encrypted
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AES-256 encryption applied. Bank-grade AES-256 encryption baked into the file. Without the password, no one opens it — not Acrobat, not Preview, not mobile readers. Optional restrictions on print, copy and edit. The file stays protected even if it ends up on the wrong device.
3 steps · 5 seconds
Protect in three clicks.
No downloads, no accounts, no friction.
1
Drop your PDF
Any PDF. Up to 100 MB.
2
Set the password
Choose what others can do: open only, view & print, or full access.
3
Download protected PDF
AES-256 encrypted. Only your password opens it.
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Convert, merge, compress, sign, redact, summarize — every PDF task in one place.
PDFEdit PDFPopularPDFSign PDFPDFFill PDFPDFTranslate PDFPDFAnnotatePDFRedact PDFPDFarrow_forwardDOCPDF to WordTopPDFarrow_forwardXLSPDF to ExcelPDFarrow_forwardJPGPDF to JPGPDFarrow_forwardPNGPDF to PNGPDFarrow_forwardPPTPDF to PPTXPDFarrow_forwardTXTPDF to TextPDFarrow_forwardHTMLPDF to HTMLPDFarrow_forwardIMGPDF to ImagePDFarrow_forwardSVGPDF to SVGPDFarrow_forwardTIFFPDF to TIFFPDFarrow_forwardWebPPDF to WebPDOCarrow_forwardPDFWord to PDFJPGarrow_forwardPDFJPG to PDFXLSarrow_forwardPDFExcel to PDFPNGarrow_forwardPDFPNG to PDFPPTarrow_forwardPDFPPTX to PDFCSVarrow_forwardPDFCSV to PDFDWGarrow_forwardPDFDWG to PDFDXFarrow_forwardPDFDXF to PDFDjVuarrow_forwardPDFDjVu to PDFEPSarrow_forwardPDFEPS to PDFEPUBarrow_forwardPDFEPUB to PDFHTMLarrow_forwardPDFHTML to PDFHEICarrow_forwardPDFHEIC to PDFIMGarrow_forwardPDFImage to PDFMOBIarrow_forwardPDFMOBI to PDFRTFarrow_forwardPDFRTF to PDFSVGarrow_forwardPDFSVG to PDFTIFFarrow_forwardPDFTIFF to PDFTXTarrow_forwardPDFText to PDFWebParrow_forwardPDFWebP to PDFXPSarrow_forwardPDFXPS to PDFPDFMerge PDFTopPDFSplit PDFPDFCrop PDFPDFRotate PDFPDFOrganize PDFPDFReorder pagesPDFExtract pagesPDFDelete pagesPDFCompress PDFPopularPDFUnlock PDFPDFProtect PDFPDFWatermark
Built for the docs you actually send.
AES-256 · bank-grade encryption, the standard governments useIndividual or bulk · rotate one page or every page in one clickPermanent · only your password opens it, on any device
When the deadline is now
Four files. Four deadlines. One tool.
The moments when it has to be done before you log off.
"Needed it sorted before the 9am call."
A grad student in Lisbon opens her laptop at midnight with one PDF task standing between her and submission. Done in under a minute, no install, no signup.
school Done in 1 min"Sorted before the standup."
A founder in Berlin gets a Tuesday-morning PDF from a Series-A investor. Coffee in one hand, baby in the other. Handled from the phone in 14 seconds.
draw On mobile"The portal closes at 5. It is 4:51."
A consultant in Singapore has nine minutes before the upload portal locks. Drops the PDF in, gets the clean file back, submits with three minutes to spare.
spellcheck Beat the clock"Forty files. One afternoon."
An operations lead in Madrid inherits a folder of 40 PDFs to process before a 6 AM flight. Batches them one after another, archives the clean copies, sleeps on the plane.
badge Bulk, fastReviews from people who actually protected the file.
Trustpilot
Based on 5,247 reviews
"The fastest PDF tool I've used."
I work with PDFs every week. This is the only one that just works — no install, no watermark surprise, no 20-minute wait. In and out in under a minute.
James W.
"Saved me a stack of admin."
I had 30 vendor PDFs to get through before a deadline. Did them all in 10 minutes flat. Used to take half a day with desktop software.
Lena S.
"Layout came out perfect."
I ran a 60-page portfolio through it. Fonts, columns, page numbers — all intact. Opened the result on my iPad and it was pixel-perfect.
Wei C.
Questions about protecting PDFs.
Don't see your question? Our team replies within 2 hours.
chat Chat with supportAES-256, the same standard banks and governments use. Same level of security as US TOP SECRET. Brute-forcing it with current hardware would take billions of years.
Yes. Two layers: a user password to open, and an owner password to block printing/copying/editing. Set one or both. Without the right password, the action is locked.
Yes — recommended. Send the PDF by email, share the password via Signal, SMS or in person. Anyone intercepting only one piece gets nothing useful.
Yes. Existing digital signatures, eSignatures and form fields are preserved when encryption is added — they verify correctly once the file is opened with the password.
Yes — anyone with the password can use our Unlock PDF tool to remove the protection. The file becomes a standard PDF again.
Negligibly — only an encryption header is added. Pages, fonts, images and metadata stay identical. The file is typically 2-3 KB larger.
Yes. Files are encrypted with 256-bit SSL in transit and at rest. Your chosen password is processed in your browser before the file is uploaded. Auto-deleted 1 hour after. SOC 2 Type II certified, GDPR compliant.
Certified & auditedSOC 2 Type IIGDPR compliantISO 27001HIPAA-readyeIDAS · ESIGNPCI DSS
Stop sending PDFs naked.
Encrypt it in 5 seconds.
Contracts, payslips, medical records — encrypted with the password only you choose. AES-256, bank-grade.
bolt Protect in 5 secondsbolt Ready in 12 secondslock 256-bit SSLdevices Any device