Security Tools
Protect PDF API Overview
Protect PDF files with strong encryption and granular permissions. Choose AES‑256 to secure content, set user and owner passwords, and decide what recipients can do: print, copy, modify contents or annotations, fill forms, assemble, or allow everything. Preserve metadata or encrypt it as needed, and respect existing owner passwords when appropriate. Ideal for automated workflows that harden documents for sharing, compliance, and long‑term storage while keeping layout and fidelity intact.
Lightning Fast Conversions
Process and convert files in seconds with our high-performance cloud infrastructure.
Accuracy Guaranteed
Our advanced algorithms ensure pixel-perfect and content-accurate file conversions.
Enterprise-Grade Security
ISO 27001, HIPAA, and GDPR compliant with encrypted file processing.
Global Infrastructure
Strategically located servers ensure low latency and high availability worldwide.
Developer Friendly
Comprehensive SDKs and clear documentation for quick and simple integration.
Time-Saving Automation
Automate repetitive document workflows and focus on what matters most.
Customizable Parameters
Fine-tune your automation with these powerful conversion options
File
File Supported formats: .pdfFile to be converted. Value can be URL or file content.
Password
StringSets the password to open protected documents.
EncryptionAlgorithm
Collection Default: Aes256BitSets the encryption algorithm.
Values: Standard40Bit Standard128Bit Aes128Bit Aes256BitEncryptMeta
Bool Default: FalseEncrypt metadata of PDF file.
UserPassword
StringSets the user password (also known as a document open password) in the output PDF document. Users will be asked to enter this password before Acrobat Reader allows them to view the PDF document.
OwnerPassword
StringSets owner password (also known as a permissions password). Using a owner password, you can restrict printing, editing, and copying content in the PDF. Recipients don’t need a password to open the document. They do need a password to change the restrictions the owner set.
RespectOwnerPassword
Bool Default: FalseEnable the property if you want to respect the document's owner password and permissions. If disabled - the old owner's password and permissions will be removed by default. Setting this property requires you to enter the correct owner's password into the Password property for protected documents.
PreservePermissions
Bool Default: FalseEnable the property if you want to keep the document permissions unchanged. It requires you to specify the OwnerPassword. If enabled, the document permission properties will be ignored.
AllowEverything
Bool Default: FalseEnable or disable all permissions. The specific permissions listed below overrides this property.
AssembleDocument
Bool Default: FalseEnable or disable assembly of the document - insert, rotate, or delete pages and create bookmarks or thumbnail images.
CopyContents
Bool Default: FalseEnable or disable copy or extract text and graphics from the document.
ModifyContents
Bool Default: FalseEnable or disable changing the contents of the document.
ExtractContents
Bool Default: FalseEnable or disable extract text and graphics.
ModifyAnnotations
Bool Default: FalseEnable or disable adding or modifying text annotations and fill in interactive form fields.
FillFormFields
Bool Default: FalseEnable or disable fill-in existing interactive form fields, including signature fields.
PrintDocument
Bool Default: FalseEnable or disable document printing.
PrintFaithfulCopy
Bool Default: FalseEnable or disable printing of the document to a representation from which a faithful digital copy of the PDF content could be generated.
StoreFile
Bool Default: FalseWhen the StoreFile parameter is set to True, your converted file is written to ConvertAPI’s encrypted, temporary storage and made available via a time-limited secure download URL, valid for up to 3 hours. After this period, the file is permanently deleted.
When StoreFile is set to False, conversion happens entirely in-memory. The raw file bytes are streamed back in the API response without touching disk or external storage, ensuring maximum security and zero persistence so that only you can access the content.
Integrate within minutes
Easy Protect PDF automation using our simple REST-API
Businesses trust us
Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.
"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."
"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."
"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"
Enterprise-Grade Security
We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.
Learn more about security