# Ask the community **URL:** https://community.the-qrcode-generator.com/c/ask-the-community/6.md?page=1 [Latest](https://community.the-qrcode-generator.com/latest.md) · [Categories](https://community.the-qrcode-generator.com/categories.md) · [Tags](https://community.the-qrcode-generator.com/tags.md) **Page:** 2 --- ## [I have product with unique serial number and pdf certificate of each. Want to generate QR code. So that when user scan QR code automatically related pdf will be downloaded. How to achieve this.. per month need to generate 80k QR](https://community.the-qrcode-generator.com/t/i-have-product-with-unique-serial-number-and-pdf-certificate-of-each-want-to-generate-qr-code-so-that-when-user-scan-qr-code-automatically-related-pdf-will-be-downloaded-how-to-achieve-this-per-month-need-to-generate-80k-qr/287)
**Author:** [@Rujinraj\_Johnrose](https://community.the-qrcode-generator.com/u/Rujinraj_Johnrose)\ **Replies:** 3\ **Last updated:** [December 30, 2024, 10:07am UTC](https://community.the-qrcode-generator.com/t/i-have-product-with-unique-serial-number-and-pdf-certificate-of-each-want-to-generate-qr-code-so-that-when-user-scan-qr-code-automatically-related-pdf-will-be-downloaded-how-to-achieve-this-per-month-need-to-generate-80k-qr/287 "2024-12-30T10:07:46Z")
I have a product with unique serial number , for each product unique pdf certificate available… need to link this and generate pdf. So that when end user scan QR, pdf certificate will be downloaded. How to achieve this… … --- ## [How many qr codes are possible? Can we create infinite qr codes?](https://community.the-qrcode-generator.com/t/how-many-qr-codes-are-possible-can-we-create-infinite-qr-codes/228)
**Author:** [@James](https://community.the-qrcode-generator.com/u/James)\ **Replies:** 2\ **Last updated:** [December 30, 2024, 8:53am UTC](https://community.the-qrcode-generator.com/t/how-many-qr-codes-are-possible-can-we-create-infinite-qr-codes/228 "2024-12-30T08:53:30Z")
Since qr codes are based on placement of black and white sqaures, will we ever run out of qr codes? --- ## [I want to create a qr code with a link for christmas? How to do it?](https://community.the-qrcode-generator.com/t/i-want-to-create-a-qr-code-with-a-link-for-christmas-how-to-do-it/245)
**Author:** [@niksharma12](https://community.the-qrcode-generator.com/u/niksharma12)\ **Replies:** 1\ **Last updated:** [December 24, 2024, 10:52am UTC](https://community.the-qrcode-generator.com/t/i-want-to-create-a-qr-code-with-a-link-for-christmas-how-to-do-it/245 "2024-12-24T10:52:11Z")
I want to distribute flyers around my community advertising a Christmas offer I’m running. I want to add a QR Code to this QR Code with customizations around christmas? How can I design such a QR code? --- ## [My qr codes for business cards (already printed) are expired? what should i do?](https://community.the-qrcode-generator.com/t/my-qr-codes-for-business-cards-already-printed-are-expired-what-should-i-do/250)
**Author:** [@hamzshaf](https://community.the-qrcode-generator.com/u/hamzshaf)\ **Replies:** 1\ **Last updated:** [December 24, 2024, 6:20am UTC](https://community.the-qrcode-generator.com/t/my-qr-codes-for-business-cards-already-printed-are-expired-what-should-i-do/250 "2024-12-24T06:20:29Z")
I’m using a card qr code on my business card. I used a free qr code generator to create the qr codes. I recently found out that the qr codes have expired. Is it possible to make them active again? --- ## [Are using qr codes for verification messy or useful?](https://community.the-qrcode-generator.com/t/are-using-qr-codes-for-verification-messy-or-useful/231)
**Author:** [@colepalmer26](https://community.the-qrcode-generator.com/u/colepalmer26)\ **Replies:** 1\ **Last updated:** [December 24, 2024, 5:31am UTC](https://community.the-qrcode-generator.com/t/are-using-qr-codes-for-verification-messy-or-useful/231 "2024-12-24T05:31:25Z")
I want to enable 2 factor authentication for my Saas login. I’m wondering if I should go the OTP or QR Code verification route. Anyone had any experience with the two? Pros and cons. --- ## [Possible to create a qr code for a website which is not live yet?](https://community.the-qrcode-generator.com/t/possible-to-create-a-qr-code-for-a-website-which-is-not-live-yet/243)
**Author:** [@jameswhit26](https://community.the-qrcode-generator.com/u/jameswhit26)\ **Replies:** 1\ **Last updated:** [December 20, 2024, 10:01am UTC](https://community.the-qrcode-generator.com/t/possible-to-create-a-qr-code-for-a-website-which-is-not-live-yet/243 "2024-12-20T10:01:31Z")
I’m launching a new product, and while the website for it is still under development, I need a QR code for the packaging right away. I already know the final domain name for the site, so can I generate a QR code linking … --- ## [Why is my qr code coming as invalid after scanning?](https://community.the-qrcode-generator.com/t/why-is-my-qr-code-coming-as-invalid-after-scanning/232)
**Author:** [@colepalmer26](https://community.the-qrcode-generator.com/u/colepalmer26)\ **Replies:** 0\ **Last updated:** [December 17, 2024, 10:39am UTC](https://community.the-qrcode-generator.com/t/why-is-my-qr-code-coming-as-invalid-after-scanning/232 "2024-12-17T10:39:04Z")
I found a QR code on a product package that promised a coupon code when scanned. I tried multiple scanning methods, but it keeps showing as invalid. Any idea why? --- ## [I want to change the destination of a qr code I already printed. Is it possible to do that?](https://community.the-qrcode-generator.com/t/i-want-to-change-the-destination-of-a-qr-code-i-already-printed-is-it-possible-to-do-that/222)
**Author:** [@Jessica](https://community.the-qrcode-generator.com/u/Jessica)\ **Replies:** 1\ **Last updated:** [December 17, 2024, 7:05am UTC](https://community.the-qrcode-generator.com/t/i-want-to-change-the-destination-of-a-qr-code-i-already-printed-is-it-possible-to-do-that/222 "2024-12-17T07:05:17Z")
I’ve already printed a QR code, but I need to change the destination URL. Is there any way to update the link without reprinting the code? Any suggestions or solutions would be appreciated! --- ## [I want to create small qr codes for my inventory? How can I do that? ](https://community.the-qrcode-generator.com/t/i-want-to-create-small-qr-codes-for-my-inventory-how-can-i-do-that/218)
**Author:** [@Boyd\_Williams](https://community.the-qrcode-generator.com/u/Boyd_Williams)\ **Replies:** 1\ **Last updated:** [December 17, 2024, 6:52am UTC](https://community.the-qrcode-generator.com/t/i-want-to-create-small-qr-codes-for-my-inventory-how-can-i-do-that/218 "2024-12-17T06:52:28Z")
I’m trying to streamline inventory management for my small business and want to create small QR codes to label my products. The challenge is ensuring the QR codes are small enough to fit on the packaging but still scanna… --- ## [Anyone know of any cheap dynamic qr code generators?](https://community.the-qrcode-generator.com/t/anyone-know-of-any-cheap-dynamic-qr-code-generators/216)
**Author:** [@Boyd\_Williams](https://community.the-qrcode-generator.com/u/Boyd_Williams)\ **Replies:** 1\ **Last updated:** [December 17, 2024, 6:49am UTC](https://community.the-qrcode-generator.com/t/anyone-know-of-any-cheap-dynamic-qr-code-generators/216 "2024-12-17T06:49:54Z")
I’m in the process of setting up a system for inventory management using QR codes, and I’d like to use dynamic QR codes so I can update the information linked to them without reprinting. However, since I’m just starting … --- ## [I want to create high volume QR codes as variable data](https://community.the-qrcode-generator.com/t/i-want-to-create-high-volume-qr-codes-as-variable-data/192)
**Author:** [@Ajit\_Diaz](https://community.the-qrcode-generator.com/u/Ajit_Diaz)\ **Replies:** 1\ **Last updated:** [December 11, 2024, 11:38am UTC](https://community.the-qrcode-generator.com/t/i-want-to-create-high-volume-qr-codes-as-variable-data/192 "2024-12-11T11:38:35Z")
I have a requirement to create QR codes from variable data to be printed on A3 sheets, 63 QR codes per seets --- ## [Make a free qr code](https://community.the-qrcode-generator.com/t/make-a-free-qr-code/143)
**Author:** [@connectwithartqr](https://community.the-qrcode-generator.com/u/connectwithartqr)\ **Replies:** 1\ **Last updated:** [November 29, 2024, 7:59am UTC](https://community.the-qrcode-generator.com/t/make-a-free-qr-code/143 "2024-11-29T07:59:13Z")
How can I make my own free qr code? --- ## [Changing PDF in the dynamic qr code](https://community.the-qrcode-generator.com/t/changing-pdf-in-the-dynamic-qr-code/133)
**Author:** [@info1](https://community.the-qrcode-generator.com/u/info1)\ **Replies:** 1\ **Last updated:** [November 26, 2024, 9:57am UTC](https://community.the-qrcode-generator.com/t/changing-pdf-in-the-dynamic-qr-code/133 "2024-11-26T09:57:36Z")
After generating a qr code linking a pdf file, is it possible later on to update the same qr code with a different pdf file? thx --- ## [Employer Branding via QR Codes](https://community.the-qrcode-generator.com/t/employer-branding-via-qr-codes/83)
**Author:** [@ravina\_singh](https://community.the-qrcode-generator.com/u/ravina_singh)\ **Replies:** 1\ **Last updated:** [November 13, 2024, 7:57am UTC](https://community.the-qrcode-generator.com/t/employer-branding-via-qr-codes/83 "2024-11-13T07:57:27Z")
How can QR codes enhance employer branding, especially on marketing materials or digital campaigns, to attract top talent? --- ## [Are QR codes secure?](https://community.the-qrcode-generator.com/t/are-qr-codes-secure/60)
**Author:** [@Sourobrata\_Sarkar](https://community.the-qrcode-generator.com/u/Sourobrata_Sarkar)\ **Replies:** 2\ **Last updated:** [November 6, 2024, 4:59am UTC](https://community.the-qrcode-generator.com/t/are-qr-codes-secure/60 "2024-11-06T04:59:49Z")
Hi, How can I know if it is safe to scan a QR code? How can I avoid fraud and stay protected? --- ## [Custom Domain Information](https://community.the-qrcode-generator.com/t/custom-domain-information/81)
**Author:** [@jiteshjalan1](https://community.the-qrcode-generator.com/u/jiteshjalan1)\ **Replies:** 1\ **Last updated:** [October 23, 2024, 9:51am UTC](https://community.the-qrcode-generator.com/t/custom-domain-information/81 "2024-10-23T09:51:41Z")
How can Custom Domain help my company? --- ## [QR Codes in Supply Chain Management](https://community.the-qrcode-generator.com/t/qr-codes-in-supply-chain-management/74)
**Author:** [@Sukanya\_VS](https://community.the-qrcode-generator.com/u/Sukanya_VS)\ **Replies:** 1\ **Last updated:** [October 23, 2024, 9:50am UTC](https://community.the-qrcode-generator.com/t/qr-codes-in-supply-chain-management/74 "2024-10-23T09:50:33Z")
How can QR codes be integrated into supply chain operations to improve traceability, and counterfeit prevention? --- ## [QR codes analytics](https://community.the-qrcode-generator.com/t/qr-codes-analytics/80)
**Author:** [@jiteshjalan1](https://community.the-qrcode-generator.com/u/jiteshjalan1)\ **Replies:** 1\ **Last updated:** [October 17, 2024, 12:08pm UTC](https://community.the-qrcode-generator.com/t/qr-codes-analytics/80 "2024-10-17T12:08:39Z")
Is it possible for us to receive GPS level information of scans on our QR codes? --- ## [What's the difference between static and dynamic codes](https://community.the-qrcode-generator.com/t/whats-the-difference-between-static-and-dynamic-codes/71)
**Author:** [@Purvi\_Soni](https://community.the-qrcode-generator.com/u/Purvi_Soni)\ **Replies:** 1\ **Last updated:** [October 17, 2024, 8:42am UTC](https://community.the-qrcode-generator.com/t/whats-the-difference-between-static-and-dynamic-codes/71 "2024-10-17T08:42:09Z")
Hi, I’m trying to create QR Codes and I see two options - static and dynamic. Which one should I go for? --- ## [Build a AR experience with QR Codes](https://community.the-qrcode-generator.com/t/build-a-ar-experience-with-qr-codes/56)
**Author:** [@Monika\_Adarsh](https://community.the-qrcode-generator.com/u/Monika_Adarsh)\ **Replies:** 1\ **Last updated:** [October 16, 2024, 5:43am UTC](https://community.the-qrcode-generator.com/t/build-a-ar-experience-with-qr-codes/56 "2024-10-16T05:43:10Z")
I want to put a QR Code on my website. When scanned, the QR Code should lead to AR (Augmented Reality) photos of my product in front of them. What’s the best way to do that? --- ## [How can I get rid of the “Ads” on scan?](https://community.the-qrcode-generator.com/t/how-can-i-get-rid-of-the-ads-on-scan/53)
**Author:** [@Shritilekha\_Kar](https://community.the-qrcode-generator.com/u/Shritilekha_Kar)\ **Replies:** 1\ **Last updated:** [October 14, 2024, 6:34am UTC](https://community.the-qrcode-generator.com/t/how-can-i-get-rid-of-the-ads-on-scan/53 "2024-10-14T06:34:20Z")
Hi, I keep seeing the nudge on “your audience is seeing an ad” on scanning your free QR Code. How can I remove the ad to ensure my brand is not perceived poorly? [Previous page](https://community.the-qrcode-generator.com/c/ask-the-community/6.md)