Add custom 2D QR Codes and 1D Barcodes (Code 128, EAN-13, vCard) to any PDF document online using RiazHub’s browser-based PDF stamping utility. 100% private, no file uploads required.
Add QR Code & Barcode to PDF
Stamp custom QR Codes or 1D Barcodes onto PDF pages instantly
100% Client-Side Safe
Drag & Drop your PDF document here
Supports standard PDF files up to 200MB • No file leaves your device
PDF
document.pdf
0 KB
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0 Pages
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0 x 0 mm
1. Code Type
2. Content / Payload
QR CODE
URL
Plain Text
vCard
WhatsApp
3. Appearance & Style
40 mm
40 mm
4 px
100%
4. Target Pages
5. Quick Align & Position
Page 1 of 1
Zoom:
100%
X: 0mm, Y: 0mm
PDF Stamping & Barcode Usage Guide
1D Barcodes vs. 2D QR Codes: Which Should You Use?
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QR Codes (2D Matrix): Best for web URLs, multi-line contact details (vCard), WhatsApp links, and long tracking keys. QR codes retain high scannability even when printed small and support up to 30% error correction.
1D Barcodes (Linear): Ideal for traditional retail (EAN-13/UPC-A), inventory SKUs (Code 128), or logistics tracking (ITF-14). Use Code 128 if you need alphanumeric characters in standard barcode scanners.
1D Barcodes (Linear): Ideal for traditional retail (EAN-13/UPC-A), inventory SKUs (Code 128), or logistics tracking (ITF-14). Use Code 128 if you need alphanumeric characters in standard barcode scanners.
Tips for Print Scannability & High Resolution
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1. High Contrast: Always ensure maximum contrast between the barcode lines/modules and the background (dark code on light background is standard).
2. Quiet Zone: Keep a padding / quiet zone around the barcode so scanner laser sensors can detect the boundaries easily.
3. Sizing: Avoid scaling 1D barcodes down too small; laser handheld scanners require distinct line widths to read correctly.
2. Quiet Zone: Keep a padding / quiet zone around the barcode so scanner laser sensors can detect the boundaries easily.
3. Sizing: Avoid scaling 1D barcodes down too small; laser handheld scanners require distinct line widths to read correctly.
Privacy Guarantee: 100% In-Browser PDF Processing
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Your privacy and document security are fully protected on RiazHub.com. All PDF rendering, vector generation, drag-and-drop placement math, and document rebuilding happen 100% inside your browser using JavaScript WebAssembly technology. Your files are never uploaded to any external server.
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