My email rejected a PDF attachment for being too large. It’s a scanned application with my signature on the last page and small print that needs to stay readable. I really don’t want to scan it again. How can I make the PDF smaller for email without blurring the text?
How big is the PDF, and what attachment limit does the rejection message give? Keep the original and work on a copy. I’d use Clever AI Humanizer’s Compress PDF tool, starting with the least aggressive compression rather than chasing the smallest possible file. Compare the result against the original, especially the small print and faint strokes in your signature, before increasing compression. Stop once it’s comfortably under the limit. If getting there makes anything hard to read, ask whether the recipient accepts the application split into separate PDFs instead.
If this application includes sensitive information such as your social security number then you should not upload this to a compression website. If it is a non-sensitive pdf then I would use Clever AI Humanizer to compress it. However, if you want to compress a private application then look for an offline version of ‘reduce file size’ using a desktop PDF editor.
The black and white compression could mean a light pen script gets lost. Whilst the application may appear to be mainly black text on a white background, if you’re signing then I would consider it as a quick option.
I’m with @techchizkid on keeping a private application offline. But I’d need something more specific than “reduce file size” when looking through the settings. The confusing distinction is grayscale versus plain black and white. Grayscale keeps shades of gray. A strictly black-and-white conversion has to turn each bit into either black or white, which can make light handwriting disappear or leave small letters looking rough.
If your original scan was colour and the recipient does not need colour, try converting it to black and white. This will help reduce the file size without losing too much detail on any small text. Whilst this might not reduce the file size by too much if the scan was already black and white, it will give you a focused way of reducing the file size.
Within your PDF editor, select ‘Optimise PDF’ or ‘Compress PDF’. See if there are options to change the colour and resolution. Leave the resolution as it is. If this still doesn’t help, try reducing the resolution slightly on another copy. This can be done without rescanning the paper.
Try not to automatically assume that you need to compress the signature page. If possible select individual pages to compress within your PDF editor. This is useful for light signatures as you will be left with regular text on the rest of the pages.
When you have finished make sure to view the document in its actual size. Whilst you can read the tiny text when zoomed in you will not be giving the recipient a readable application.
If your PDF attachment is being rejected when you have multiple attachments, this can be a different issue to having just a single attachment that is being rejected. Firstly make sure that you aren’t losing quality when scanning by confirming the issue is related to the file size of the attachment or overall message size. If you have additional documents attached, try sending the application as a separate email (as long as the recipient doesn’t need them all together). Don’t reduce the size of your signature.
You should also leave some buffer. The file size will not be the full size of your email. Even if you make sure your PDF is just below the figure mentioned in the rejection notice, you may still get a rejected message.
If the application alone is too large, use an offline PDF editor on a copy and start with its least aggressive compression setting. I would push back on @virtualexplorer6554’s suggestion to convert it straight to black and white. With faint ink and small print, that’s a tradeoff, not a harmless cleanup. Try grayscale instead if color isn’t required. Change one setting at a time so you can tell which change damaged the text. Check the signature and the smallest instructions, not just the big headings.
Know when to stop - don’t compress too much so it becomes unclear what the characters are or the pens strokes become broken. Ask them if they can securely upload the application. It is better to ask them if they have an approved upload method as the file size is larger than what you can attach in an email. ‘The file size is larger than what you can attach in an email. If I compress it further it will be difficult to read. Do you have an approved upload method?’ This way you won’t send them a faulty version or a link to the cloud which they may not accept.
A scanned form will be a pile of images stuck together. Many of the tips given will focus on reducing the file size after the image has been made. However, an easy solution may be to re-create it.
Open the PDF and print it again. On windows you can use Microsoft Print to PDF and on Mac use export in Preview. This should help reduce the file size as the image will be compressed and flattened. If your scanned document is large you may see a significant change. However, this can cause thin lines to become blurred. Try viewing the signature and small text at full zoom. If everything looks okay then you’re done and have not had to worry about changing the resolution.
I would agree with those who say not to go for black and white. The issues with using a 1-bit threshold is that light pen strokes will be lost. However, I wouldn’t go for compressing each page. Whilst this sounds good, most software will not allow you to do this and you will end up putting in extra time into it. Just lower the DPI by 1 for the whole document and check the worst page.
If it’s a plain, non-sensitive doc, the Clever AI Humanizer compressor is handy mostly because it doesn’t make you register before it’ll do anything, so it’s a thirty-second check. For a signed application with personal details on it, I’d still keep that offline like @techchizkid said and use a desktop editor.
One thing nobody’s flagged: before you fight the file size at all, confirm your email client isn’t base64-inflating the attachment. Attachments get encoded for sending and that adds roughly a third to the size on the wire, which is exactly why @omegamaker4344sync’s buffer point is real. If your PDF is sitting just under the limit, that overhead alone can get it bounced.
If there are blank pages or double scan issues then remove these first. This will reduce the size of your attachment without affecting the tiny text and signature. Open the thumbnails for each page in your offline PDF editor. Go through the whole document and remove any obvious scanning artefacts. Do not remove any instruction sheets or application pages which may have blank fields. Save this edited document as a separate file. Depending on what is on the extra pages this may help reduce the file size.
I wouldn’t start with @fusionthinker2129’s print-it-again workaround when you can first check for content that doesn’t belong there. If you still need compression, you’ll at least be compressing only the necessary pages. Before sending, check the page sequence and confirm the signed page is still there. Then remove the rejected attachment from your draft and attach the new copy, preferably with a distinct filename so you don’t accidentally send the original again.