How do I download PDF notes and find them again?

Last reviewed: September 23, 2026 · Markdown version

Downloading is the easy half. The half that goes wrong is three weeks later, when you have sixty PDFs called Lecture_04_final(2).pdf and no idea which one had the thing.

Where a downloaded PDF goes

On an iPhone, Apple's user guide is precise: "In the Files app, you can find and view your documents, images, and other files that you downloaded from the internet or your mail app" — "Go to the Files app", "Tap Browse", then "Tap the Downloads folder to see your downloaded files". It adds a tip worth remembering when the folder seems to be missing: "If you don’t see the Downloads folder on the Browse screen, tap iCloud Drive" (Find your downloaded files on iPhone, read 23 September 2026).

On Android, Chrome's help points two ways. In the browser: "At the top right, tap More", then Downloads — or, if your address bar sits at the bottom, "swipe up on the address bar. Tap Downloads". For everything on the device: "To find all the files that you've downloaded to your device, open the Files app" (Download a file — Android — Google Chrome Help, read 23 September 2026).

If a set of notes matters, save it deliberately into a folder you chose, rather than trusting wherever a browser or chat app happened to put it.

The three things that make notes findable later

One folder, not eleven. Notes scattered between Downloads, a chat app's folder and a cloud drive cannot be searched together by anything. Pick one place on the first day.
Names that carry the course, not the week. Lecture_04 is meaningless in April. Anything with the subject in it is not.
Know which of them have text. A slide deck exported to PDF has a text layer and is searchable. A photograph of a whiteboard saved as a PDF does not, and no amount of searching will find a word in it until something reads the image. How to check.

Why searching each file one at a time fails

Every PDF reader has a find-in-page function, and it works perfectly — on the file that happens to be open. The question students actually ask is the other shape: which of these sixty files mentions this term, and on what page. Answering it by opening files in turn is how a ten-minute question becomes an evening.

Scanned and photographed notes

Handouts you photographed, or a classmate's scanned pages, are images inside a PDF wrapper. They become searchable only after text recognition runs over them, and the results are honest rather than magic: clean printed text reads well, faint photocopies read poorly, and handwriting is not something to rely on. The honest version of the handwriting question.

Where DocFind fits

DocFind indexes a folder of PDFs and searches all of them together — results show the file, the page, and the surrounding text, and tapping one opens that PDF at that page with the keywords highlighted. Scanned pages are read on your device and then searched like the rest, with matches that came from that reading labelled as such, and any page it could not make searchable reported rather than silently skipped.

The free tier is one library of up to 25 documents, 10 scanned pages and 10 exports every month, with unlimited keywords and unlimited results — enough to find out whether it suits a set of notes before deciding anything. Searching and indexing work with no internet connection, and your documents never leave your device.