This article is general information about Australian Partner Visa documentation. It is not migration advice. For advice on your circumstances, consult a registered migration agent (search MARA).
If you've ever tried to upload a 60-page bank statement or a stack of relationship photos through ImmiAccount, you've probably hit it: "Attachment exceeds maximum file size". The Department of Home Affairs caps every uploaded file at 5MB. There's no way to negotiate, and no override — your file fits or it doesn't get uploaded.
This guide walks through the simplest ways to bring a Partner Visa PDF under 5MB without making it unreadable. None of it is hard, and you don't need to be technical. If you'd rather not deal with it at all, VisaBinder keeps every category PDF under 5MB automatically as part of compiling your evidence pack — and when a category holds more evidence than fits in one file, it splits that category into numbered parts for you rather than making you decide where to cut.
For the rest of the upload rules and a practical naming system, see the ImmiAccount upload limits and file-naming guide.
Quick answer: oversized visa PDFs are almost always big because they contain high-resolution scans or photos — so the fix is to shrink the images, not to delete pages. On a Mac, open the file in Preview → File → Export → Reduce File Size. On Windows, install PDF24 Creator and compress at 150 DPI. If the file is still too big, split it at a document boundary — ImmiAccount accepts several files per category, just not large ones. The re-scanning and command-line options further down handle the stubborn cases.
Why 5MB? And why per file, not per category?
Home Affairs doesn't publish a detailed rationale, but the 5MB cap appears to be a legacy of the underlying ImmiAccount document handling. Whatever the reason, three things are true in 2026:
- The cap is per attachment, not per evidence category. You can upload many files in each category — they just have to be ≤5MB each.
- There's a limit on how many files you can attach. The counter at the top of the Attach Documents page reads "0 attachments received of 100 maximum", and each applicant on the application has their own list and their own limit. So don't upload twelve separate PDFs for twelve months of utility bills — combine them into one file under 5MB and save your slots.
- The size cap is enforced at the upload step. ImmiAccount won't tell you in advance that your file is too big; it tells you after the upload fails.
That last point is what catches most applicants off guard. You spend an hour scanning bank statements, build them into a single PDF, and only when you go to upload do you find out that the file is 12MB and won't go.
One point of confusion worth clearing up first: the ImmiAccount help text says "compressed files are not accepted." That means .zip archives — don't zip your documents together. A PDF you've shrunk with the tools below is still an ordinary PDF, and uploads normally.
Why your visa PDF is too big
Most oversized Partner Visa PDFs are big for one reason: they contain scanned images at a higher resolution than you need. A single A4 page scanned at 600 DPI in colour can be 4–6MB on its own. Stack twelve of those into a bank statement PDF and you're at 50MB before you've started.
Screenshots are the other usual culprit — a chat history saved as a few hundred phone screenshots will blow the cap long before the content does. Our WhatsApp chat evidence guide covers how to present those as text instead.
The fix is almost always to shrink the images. In plain terms:
- Aim for about 150 DPI. That's plenty for a document read on a screen — anything higher just adds file size. (200 DPI is fine if you're worried about small print.)
- Save photos as JPEG rather than a lossless format. At a normal quality setting this looks identical to a reviewer but is several times smaller.
- Keep text-only scans in black and white. A bank statement is black ink on white paper, so scanning or saving it in colour just wastes space.
You almost never need to delete pages or content. You just need the images inside the PDF to be the right size for a screen — and the tools below do that for you.
The easiest fixes (start here)
You don't need special software for most files. These options work without touching a command line.
On Windows
Windows has no built-in equivalent to Mac's Preview, which is what makes PDF compression on a PC more annoying than it should be. Two approaches cover almost everything:
- PDF24 Creator (start here). A free Windows desktop app that processes files on your computer, so nothing sensitive leaves the machine — use the installed app, not their web version, which uploads. Open its Compress PDF tool, drag your file in, and set the DPI to 150.
- "Print to PDF" (for locked or bloated files). Open the PDF in Edge or Chrome — entering your password if it asks — press Ctrl + P, set the destination to Microsoft Print to PDF, and save. This produces a clean, unencrypted copy, which is the reliable way to deal with a locked bank e-statement. It's hit-and-miss as a compressor, though: on image-heavy scans it can leave the file the same size or larger, so run the result through PDF24 afterwards.
A word on the "open it in Word and re-save it as a PDF" trick you'll see suggested elsewhere: it works for text-based PDFs you generated yourself, but Word re-flows and re-renders whatever it converts. On a scanned bank statement, certificate, or lease, it either dumps one giant image or garbles the layout — and the case officer then sees an evidence document that doesn't look like the original. Not worth it for visa evidence.
On a Mac: Preview
The fastest option if you're on a Mac:
- Open the PDF in Preview.
- File → Export… (it has to be Export, not "Save As").
- From the Quartz Filter dropdown, choose Reduce File Size.
- Save with a new name and check the size.
If the result looks too fuzzy, the file has been compressed too hard. The easiest fix is to split it into two PDFs instead (see below), or use the Ghostscript option in the Advanced section, which lets you control exactly how much it shrinks.
Check the result before you upload
Whatever tool you use, open the compressed file and read the smallest print on the busiest page — account numbers, dates, signatures. Home Affairs' own guidance warns that low-quality scans may delay processing, so a file that fits under 5MB but can't be read comfortably costs you more than the compression saved. If it's borderline, compress less and split instead.
In your browser: iLovePDF, Smallpdf, and similar
These work on any computer and need no install — you upload your PDF and download a smaller one. The catch: they upload your file to someone else's server. For a lease where the bank details are already redacted, that's fine. For raw bank statements, passports, or anything sensitive, prefer an offline option — Preview on a Mac, PDF24 on Windows.
If it's still too big (or the upload keeps failing)
If you've compressed and the file is still over 5MB — or ImmiAccount keeps throwing an error — you likely have one of these:
- A password-protected bank statement. Many Australian banks issue e-statements as encrypted PDFs, and ImmiAccount does not accept encrypted PDFs. Compression tools can't shrink them while they're locked, either. Open the file with your password and use the Print to PDF method above (or Preview's Export on a Mac) to save an unlocked copy before you compress or combine anything.
- A file that should be split. A year of bank statements can go up as two PDFs instead of one. Split at a natural document boundary — January–June statements in one file, July–December in the other — and never mid-document. ImmiAccount asks for all pages of a single document in one PDF, so don't send half a passport or half a certificate. If it's genuinely one long document, compress harder or re-scan before you split it. Keep the per-applicant file limit in mind, too. (This is the one step VisaBinder does for you: if a whole category — a few hundred social photos, typically — won't fit in one PDF, it comes out as
03_Social_Evidence.pdf,03_Social_Evidence_Part2.pdfand so on, each under 5MB, cut only between whole documents, and all uploaded into that same ImmiAccount category.) - A file name ImmiAccount doesn't like. Name files clearly —
Joint_Bank_Statement_Jan-Jun_2025.pdf— and stick to letters, numbers, hyphens, and underscores. Characters like&,#,%, commas, and apostrophes can cause an upload to fail, and it costs nothing to avoid them. Check the extension too: ImmiAccount acceptsbmp, dcm, doc, docx, dot, gif, jpg, pdf, png, ppt, pptx, rtf, txt, xls, xlsx. - A cover page doing all the damage. Some bank PDFs open with a glossy logo page that's several times larger than the actual statement pages — removing it can be a quick win.
If your documents aren't in English
Any non-English document has to be accompanied by an English translation. If the translator is in Australia they need to be NAATI-accredited; translators outside Australia don't need NAATI accreditation, but every translation must show the translator's full name, address, telephone number, qualifications, and language experience — all in English.
ImmiAccount asks for multi-page documents as a single PDF, so keep the original and its translation together in one file. Merge first, compress second.
A note on redaction
Some applicants redact sensitive lines from bank statements (e.g. transactions unrelated to the relationship, or non-essential personal details). This is fine — but never redact with a black highlighter in Preview's annotation tools. Those marks can be removed by the recipient with a few clicks, exposing the underlying text.
If you need to redact:
- Use a tool that flattens the redaction into the page image (Adobe Acrobat's redaction tool, or save the document with redactions applied as raster output).
- Or convert the page to an image first, then redact and recompress.
VisaBinder's redaction helper handles this automatically — your highlighted lines are flattened into the final PDF before it's compressed.
Advanced: compress with Ghostscript (command line)
This section is for people comfortable using a terminal. If that's not you, the options above will handle almost every file — skip ahead.
Ghostscript is a free, offline tool that gives you the most control over how much a PDF is compressed, and it never uploads your file anywhere. Install it via Homebrew (brew install ghostscript) and run:
gs -sDEVICE=pdfwrite \ -dCompatibilityLevel=1.4 \ -dPDFSETTINGS=/ebook \ -dNOPAUSE -dQUIET -dBATCH \ -sOutputFile=output.pdf input.pdf
The -dPDFSETTINGS flag has four common values, in increasing aggressiveness:
/prepress— 300 DPI, highest quality, least compression (rarely useful here)/printer— 300 DPI, ~3–5x reduction/ebook— 150 DPI, ~5–10x reduction (recommended for visa PDFs)/screen— 72 DPI, ~10–20x reduction (text stays readable, photos look soft)
This is the engine behind a lot of "compress my PDF" services — and the engine VisaBinder runs server-side, so you never have to install it.
How this fits into your evidence pack
PDF compression is the unglamorous last step in compiling Partner Visa evidence. The earlier steps — gathering, sorting into the four Home Affairs categories, deciding what's strong enough to include — are the real work. Our subclass 820 evidence checklist walks through what to include in each category.
Once you've gathered everything, you'll have a stack of PDFs, JPEGs, and screenshots that need to be combined per category and dropped under 5MB. The tools above all do the job. What makes it tedious isn't any single file — it's repeating the merge, compress, check, rename cycle across dozens of them, on whichever operating system you happen to have. That's the part VisaBinder does in one step, and exactly the fiddly, repetitive work the tool exists to take off your plate.
Quick reference: what to try first
If you have a file over 5MB, in order:
- Check it isn't locked. If it's a password-protected bank statement, open it and re-save an unlocked copy first — encrypted PDFs are rejected outright.
- Compress it. Mac: Preview → Export → Reduce File Size. Windows: PDF24 Creator at 150 DPI. 30 seconds either way, and it works most of the time.
- Split the PDF into two files at a document boundary. Nearly always works — just keep the per-applicant cap on total attachments in mind.
- Re-scan at 200 DPI greyscale instead of 300 DPI colour. Fixes most fresh scans.
- Run Ghostscript with
-dPDFSETTINGS=/ebook. For the stubborn ones, if you're comfortable on the command line.
The 5MB cap isn't going anywhere. The good news is that once you've compressed your evidence once, the workflow is the same for any future RFI documents Home Affairs requests — and for your 801 stage 2 application a couple of years later.