import * as em from "../../Enums";
import { type ObjectManager } from "../../ObjectManager";
import { StandardSecurityHandlerRev2 } from "./StandardSecurityHandlerRev2";
/**
 * Represents a Standard Security Handler Revision 3.
 * This handler uses RC4 encryption with key from 40 to 128 bit length and allows
 * defining additional permission flags.
 **/
export declare class StandardSecurityHandlerRev3 extends StandardSecurityHandlerRev2 {
    protected constructor(om: ObjectManager, id: number);
    static innerCreate(om: ObjectManager, id: number): StandardSecurityHandlerRev3;
    /**
     * Creates a new {@link StandardSecurityHandlerRev3}.
     *
     * @param om - {@link ObjectManager} that controls the lifetime of the {@link StandardSecurityHandlerRev3}.
     */
    static create(om?: ObjectManager): StandardSecurityHandlerRev3;
    /**
     * Gets or sets a value controlling how a document can be printed.
     */
    get printingPermissions(): em.PrintingPermissions;
    /**
     * Gets or sets a value controlling how a document can be printed.
     */
    set printingPermissions(value: em.PrintingPermissions);
    /**
     * Gets or sets a value controlling how a document can be edited.
     */
    get editingPermissions(): em.EditingPermissions;
    /**
     * Gets or sets a value controlling how a document can be edited.
     */
    set editingPermissions(value: em.EditingPermissions);
    /**
     * Gets or sets a value indicating whether a document's content can be copied or extracted.
     */
    get copyContent(): boolean;
    /**
     * Gets or sets a value indicating whether a document's content can be copied or extracted.
     */
    set copyContent(value: boolean);
    /**
     * Gets or sets a value used to determine whether content could be extracted for
     * the purposes of accessibility.
     * Note however that this restriction has been deprecated in PDF 2.0,
     * which states that PDF readers shall ignore this bit.
     * The default value of this property is true, and it should not be changed.
     */
    get copyContentAccessibility(): boolean;
    /**
     * Gets or sets a value used to determine whether content could be extracted for
     * the purposes of accessibility.
     * Note however that this restriction has been deprecated in PDF 2.0,
     * which states that PDF readers shall ignore this bit.
     * The default value of this property is true, and it should not be changed.
     */
    set copyContentAccessibility(value: boolean);
    /**
     * Gets or sets the length of the encryption key, in bits.
     * The value must be a multiple of 8, in the range from 40 to 128.
     * IMPORTANT NOTE: {@link StandardSecurityHandlerRev4} can use RC4 or AES encryption,
     * and according to specification, with RC4 any key length in the range from 40 to 128 can be used.
     * But tests show that current/recent versions of <b>Adobe Acrobat Reader DC</b> and <b>Adobe Acrobat Pro DC</b>
     * cannot handle files encrypted with RC4 if the key length is not equal to 128.
     * Older versions of Acrobat Reader handle such files without issues, so it looks like a bug in
     * the newer versions of Acrobat Reader.
     * So it is recommended that {@link StandardSecurityHandlerRev3} is used
     * in cases when RC4 encryption with key length other than 128 is required.
     */
    get encryptionKeyLength(): number;
    /**
     * Gets or sets the length of the encryption key, in bits.
     * The value must be a multiple of 8, in the range from 40 to 128.
     * IMPORTANT NOTE: {@link StandardSecurityHandlerRev4} can use RC4 or AES encryption,
     * and according to specification, with RC4 any key length in the range from 40 to 128 can be used.
     * But tests show that current/recent versions of <b>Adobe Acrobat Reader DC</b> and <b>Adobe Acrobat Pro DC</b>
     * cannot handle files encrypted with RC4 if the key length is not equal to 128.
     * Older versions of Acrobat Reader handle such files without issues, so it looks like a bug in
     * the newer versions of Acrobat Reader.
     * So it is recommended that {@link StandardSecurityHandlerRev3} is used
     * in cases when RC4 encryption with key length other than 128 is required.
     */
    set encryptionKeyLength(value: number);
}