Abstract: The present disclosure discloses a method for editing pdf page text on a web page, wherein the method is provided with a timer, and a filling bitmap and a cursor bitmap are alternately displayed at timed intervals of the timer to simulate a cursor flashing effect and prompt a user for a current input position. A data layer acquires in real time a code of a key which is input by a user; when the data layer receives that the code of the key, which is input by the user is a character, the character corresponding to the code of the key is inserted into a first position, and a timer is paused simultaneously; after the character is inserted, the cursor is located at a second position, and then an updated region is calculated, an updated bitmap is drawn and sent to a web page which displays the updated bitmap on the updated region, wherein the updated region is a region in the text content where a position of a character changes before and after the character is input.