JPG to PDF under 300 KB

How many pages fit in 300 KB

We measured this on 13 October 2026. Our test pages were 12 megapixel images made to look like phone photos of printed A4 sheets: 10 point text on a desk, with uneven light and a little grain, about 1.1 MB each. We put sets of 1 to 10 of them through this page at 300 KB and read every PDF on a laptop screen.

So about seven pages is the comfortable limit for ordinary print. Pages with more detail use the space faster: in a second test on 15 October 2026, with more detailed page photos of about 2 MB each, seven pages already came down to about 68 DPI and the tool warned. Large type stays legible with less detail than our 10 point text, and fine print needs more, so treat seven as a guide and check the result with Open.

Forms that ask for 300 KB

Protean, which runs the NSDL PAN service, lists PDF as the format for the supporting documents of a PAN application and gives the size as a maximum of 300 KB per page (Protean upload guide). Proof of identity, address and date of birth are often one or two pages each, and a proof saved as one PDF under 300 KB meets that rule however the pages are counted. The photo and signature are separate JPG uploads with much smaller limits, which the compress to KB tool can meet.

India’s e-Visa wants the passport bio page as a PDF of at least 10 KB and at most 300 KB (e-Visa instructions). A single page kept the full 2,000 pixels in our test, so the passport page goes in at its best and lands far above the 10 KB minimum.

Scans, page photos and ordinary photos

A clean scan from a scanner or a scanning app has crisp black edges on white paper, and crisp edges take more bytes to store. Under the same 300 KB, our five scanned pages kept about 890 pixels each, against about 1,030 for five page photos. Both read well, because a scan has no shadow or grain softening the letters.

For each file, or for all of them?

Upload rules are written two ways, and they need different PDFs. If each document has its own upload box with a 300 KB limit, make one PDF per document: add that document’s pages, create and download the PDF, then remove them and add the next. When every document is a single page, tick One PDF per image instead and get them all at once in a zip, each PDF under 300 KB on its own.

If the rule is 300 KB for everything together, put it all in one PDF here. If the form still wants separate files, share the limit out yourself: for two files, type 150 in the Max box and make each PDF in turn.