# Search-hints highlighting in PDFA\`s and PDF's with Tiff overlay
**URL:** https://discuss.elastic.co/t/search-hints-highlighting-in-pdfa-s-and-pdfs-with-tiff-overlay/189806
**Category:** Elasticsearch
**Created:** [July 10, 2019, 2:48pm UTC](https://discuss.elastic.co/t/search-hints-highlighting-in-pdfa-s-and-pdfs-with-tiff-overlay/189806 "2019-07-10T14:48:51Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@bill99](https://discuss.elastic.co/u/bill99)
#### Post date: [July 10, 2019, 2:48pm UTC](https://discuss.elastic.co/t/search-hints-highlighting-in-pdfa-s-and-pdfs-with-tiff-overlay/189806/1 "2019-07-10T14:48:51Z")
Hello Forum
Does ElasticSerach support (out-of the box) to highlight search hints in PDFA's and PDF's with TIFF-overlay (I would like to enter my queries into a Web-UI/webbroser)?
Thank for any feedback!
Bill
PS
[https://www.elastic.co/guide/en/elasticsearch/reference/5.5/search-request-highlighting.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.5/search-request-highlighting.html)
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [July 10, 2019, 3:06pm UTC](https://discuss.elastic.co/t/search-hints-highlighting-in-pdfa-s-and-pdfs-with-tiff-overlay/189806/2 "2019-07-10T15:06:43Z")
Welcome!
> [@bill99](#):
>
> Does ElasticSerach support (out-of the box) to highlight search hints in PDFA's and PDF's with TIFF-overlay (I would like to enter my queries into a Web-UI/webbroser)?
If I understand correctly the question, no elasticsearch can not highlight a PDF document. Elasticsearch does not know anything about the source of the text which is being indexed. It can come from a text, an image with OCR, a PDF, ...
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 7, 2019, 3:06pm UTC](https://discuss.elastic.co/t/search-hints-highlighting-in-pdfa-s-and-pdfs-with-tiff-overlay/189806/3 "2019-08-07T15:06:44Z")
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