Dokdoin - Convenient & Safe Web Tools

PDF Sign & Fill

The PDF Sign & Fill tool is a lightweight offline utility that lets you immediately type English/Korean text and draw signatures directly onto PDF documents like contracts and applications, without registrations or complex installations.

Drag and drop the document PDF file to write on here
Or click to import a document.

100% Safe Secure PDF Signature and Filling Guide

The PDF Sign & Fill tool is a lightweight offline utility that lets you immediately type English/Korean text and draw signatures directly onto PDF documents like contracts and applications, without registrations or complex installations.

Precautions for Use

  • Dotted guideline for modification: The pale orange dotted border displayed on the PDF editing screen is only a marking element to assist editing convenience, and it is not printed in the downloaded final file and is output cleanly.
  • Caution on font output: In the case of the basic Korean font, it is calculated as a high-quality system basic font, so the capacity is light. If the text layout of the final converted PDF is slightly misaligned, you can merge it more safely by turning on the 'Apply integrated Korean font' option in the top toolbar. (※ As font data is merged, the file download size may increase somewhat.)

Key Features

  • 100% Safe Local Offline Computing: Through PDF.js and PDF-lib libraries, all editing takes place only within the user's browser, and files are not transmitted to external servers, so there is no concern about leaking confidential contracts.
  • Real-time automatic temporary storage: Don't worry if you accidentally refresh or close the page while working. If you upload the same PDF file again, the text and signature you were working on will be automatically restored.
  • Efficient window fitting mode: In the case of a document with many pages (3 or more pages), a compact movement control device that automatically turns one page at a time for editing is provided to reduce the load of the screen stretching excessively downwards.
  • Batch conversion download to image format: Not only can you download the edited document as a PDF file, but you can also automatically convert it into a JPG image format for each page and save it as a ZIP file if necessary.

How to Use

  1. Drag and drop or click the document PDF file you want to sign or write on into the upload area to import it.
  2. Select 'Add text' from the top toolbar, click on the document to enter the desired content, or complete the confirmation checkbox through 'Add check'.
  3. Click 'Add signature', draw a hand signature with a mouse or mobile screen touch drawing, and then select 'Apply signature' to place it in the desired position in the PDF and adjust the size.
  4. After completing all writing and stamping, select the 'Download PDF' button or the 'Download Image Batch' button to save the completed document.

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