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Make your file smaller

Each document can be up to 20 MB (PDF, JPG or PNG). If yours is larger, these free steps use tools already on your computer or phone. Most take under a minute.

Keep your documents private. Please don’t upload your passport, ID or transcripts to free “compress PDF” websites: they receive a copy of your document. Everything below works on your own device.
Choose what you have

A PDF on a computer

Mac — Preview (built in)
  1. Open the PDF in Preview (double-click it).
  2. Choose File → Export…
  3. Set Quartz Filter to Reduce File Size, then click Save with a new name.
  4. Open the new file and zoom in. If the text has become blurry, use “A scan or photo” below instead.
Windows — a document you wrote in Word
  1. Open the original Word document (not the PDF).
  2. Choose File → Save As and pick PDF as the file type.
  3. Select Minimum size (publishing online), then Save.
Windows — a scanned PDF

Scanned PDFs are large because they are photos of pages. The simplest fix is to scan again with lighter settings:

  1. Open the Windows Scan app (or your scanner’s own app).
  2. Set Resolution to 150–200 DPI (not 300 or 600).
  3. Set Colour mode to Greyscale for transcripts and letters. Keep Colour for your passport or ID.
  4. Save as PDF and check that every word is still readable.

Have Adobe Acrobat Pro? Use File → Reduce File Size (the free Acrobat Reader cannot do this).

Remove pages you don’t need (Mac)
  1. In Preview, choose View → Thumbnails.
  2. Select blank or duplicate pages and press Delete.
  3. Choose File → Save. Please keep every page of your transcript.

A scan or photo on your phone

iPhone / iPad — scan straight to a small PDF
  1. Open the Files app, tap ⋯ (top right) and choose Scan Documents. (The Notes app can scan too.)
  2. Hold the phone over the page; it captures automatically. Add every page, then tap Save.
  3. Upload that PDF. Phone scans of one to three pages are usually well under 20 MB.
Android — scan with Google Drive
  1. Open the Google Drive app, tap + and choose Scan.
  2. Photograph each page, crop if needed, and tap Save. Drive creates a PDF.
  3. Download it to your phone and upload it here.
Tips for a clear, small scan
  • Lay the page flat in good daylight; avoid shadows and flash glare.
  • Fill the frame with the page: no desk or background around it.
  • Scan documents rather than taking ordinary photos: scans are far smaller and easier to read.

A photo or image on a computer

Mac — Preview (built in)
  1. Open the image in Preview.
  2. Choose Tools → Adjust Size…, keep Scale proportionally ticked and set the width to 1600 pixels.
  3. Choose File → Export…, pick JPEG, set Quality to about the middle, and Save.
Windows — Photos app
  1. Open the image in Photos.
  2. Click ⋯ (See more) → Resize image.
  3. Choose a medium size (around 1600–2000 pixels wide) and save a copy as JPG.
Windows — Paint
  1. Open the image in Paint.
  2. Click Resize, choose Percentage and enter 50 for both sides.
  3. Choose File → Save as → JPEG picture.
Why JPEG instead of PNG?

For photos and scans, a JPEG is often five to ten times smaller than a PNG of the same picture, with no visible difference. Keep PNG only for screenshots.

Refused by our security check

“This PDF contains scripts, attachments or interactive form code”

Some PDFs (fillable forms, files exported from certain tools) contain code we don’t accept. Printing to a new PDF removes it and keeps the page exactly as it looks:

  1. Mac: open the PDF, choose File → Print, then PDF → Save as PDF (bottom left).
  2. Windows: open the PDF in Microsoft Edge or Chrome, press Ctrl + P, choose Microsoft Print to PDF (Edge) or Save as PDF (Chrome), then Print / Save.
  3. Upload the new file.
“This file didn’t pass our security check”

Every document is verified before it is stored. If one doesn’t pass, create a fresh copy, for example by scanning the paper original again or exporting it again from the program you made it in, and upload that.

If it happens again, run your device’s security check (on Windows, Windows Security → Virus & threat protection → Quick scan; on a Mac, keep macOS up to date), then create the copy again.

Before you upload again

  • Open the smaller file and zoom in: every word, photo, signature and stamp must still be readable.
  • Check its size: on a Mac, select it and press ⌘ + I; on Windows, right-click → Properties. It must be 20 MB or less.
  • Go back to your application and upload it in the same place. Your other answers are saved.

Still too large, or stuck? Send us a request and we’ll help.