Yes, and most people do. Downloading and uploading files and Screenshot upload fail in different places, so keeping both available costs nothing and covers the cases the other one misses.

Which is better for pages behind a login?

Anything that reads the page as your browser already renders it works on signed-in pages. Anything that asks the assistant to fetch a URL itself does not, because it arrives without your session.

Which one preserves the source of each claim?

Only approaches that carry the page title and URL alongside the text. Without them the assistant can summarise but cannot attribute, and you lose the ability to check an answer.

Comparison

Downloading and uploading files vs Screenshot upload

Saving pages as PDFs or documents and attaching them to the chat. Capturing the screen as an image and attaching it to the chat. They overlap enough to feel interchangeable and differ enough that picking wrong costs you an afternoon. Here is what each is actually good at.

Downloading and uploading files

Saving pages as PDFs or documents and attaching them to the chat.

Strengths

+ Handles real PDFs, including ones no extension can read from the page
+ Attachments persist in the conversation for later questions
+ No extra software beyond the browser and the assistant

Limits

- Save, find, attach: several steps per document
- Web pages printed to PDF keep the navigation and page furniture
- Upload limits on file count and size apply on most plans

Best for: Documents that already exist as files rather than as pages.

Screenshot upload

Capturing the screen as an image and attaching it to the chat.

Strengths

+ Captures anything visible, including charts and layout
+ Works with tools that block text selection
+ No extraction step to go wrong

Limits

- Only the visible viewport is captured
- Text has to be read back out of the image, which is lossy
- Images consume far more context than the same text

Best for: Visual content where layout is the point.

How to choose

Judge them on the job rather than the feature list. Downloading and uploading files is the right call when the work looks like: documents that already exist as files rather than as pages. Screenshot upload wins when the work looks like: visual content where layout is the point.

The failure modes matter more than the strengths, because that is where the afternoon goes. Check the limits column against your own pages, particularly anything behind a login, anything paywalled and anything rendered as an image.

Common questions

Which is faster, Downloading and uploading files or Screenshot upload?: For a single page the difference is small. Across several pages the gap widens quickly, because documents that already exist as files rather than as pages and visual content where layout is the point describe different jobs, not different speeds at the same job.
Can I use both?: Yes, and most people do. Downloading and uploading files and Screenshot upload fail in different places, so keeping both available costs nothing and covers the cases the other one misses.
Which is better for pages behind a login?: Anything that reads the page as your browser already renders it works on signed-in pages. Anything that asks the assistant to fetch a URL itself does not, because it arrives without your session.
Which one preserves the source of each claim?: Only approaches that carry the page title and URL alongside the text. Without them the assistant can summarise but cannot attribute, and you lose the ability to check an answer.

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