Problems mapping a long multi-page PDF

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This topic contains 10 replies, has 4 voices, and was last updated by  Admin 2 years, 7 months ago.

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  • #1366 Reply


    I’ve got four form to PDFs up and running fine.

    I’m working on number five and not having much luck.

    This is a really long PDF with roughly 270+ fields. We had issues with the field map saving at first, it would only map the first couple of fields and then the data would be gone. It would not load again once saved.

    We increased the post max size and it seemed to be working. I’ve just spent over an hour mapping half of this PDF (saving along the way) and then the data disappeared again on the last save. Reloading it doesn’t work. All of the work is gone.

    Is there anything I can do to recover this field map? Are there limits on how many fields can be mapped?

    #1367 Reply


    Have you updated to the latest version which disables the highlighted image feature?

    Regarding data recovery, there are no “revisions” module such as posts/pages, however, we’d need access to look in the database to check if the data is lost or just hidden…

    There are no limits to the number mapped fields, however, that said… 270 fields may be a few more than we are working with on any of our forms. Can you email a temp login to your server? (support(at) If not, then please forward your pdf form and let us know about your hosting, (shared or private) and we’ll recreate the map on our side – or find the issue in doing so.

    #1392 Reply


    I have updated the plugin. I’ve also tried it with and without the field previews, but the data no longer loads for that field set either way.

    You need temp access to wordpress or the server? FTP? CPanel? what exactly?

    #1393 Reply


    Access to wordpress.

    #1394 Reply


    Unfortunately and regrettably, we can not restore the layout or field map. I apologize.

    Upon closer examination, I was incorrect about the number of fields limit. We made a setting adjustment on your installation, however there is a WordPress limitation of 165 fields. (See here for similar issue:

    To cut a long story short, the max_input_vars variable value must be increased to 5000 or more.

    Technical details:
    Field map information was restricted to 60 KB maximum. This issue is fixed on your installation and will be released for others upon the next update. However, mapping one field corresponds to 6 PHP variables. Most servers, including yours, allows up to 1000 variables (PHP “max_input_vars” setting). So, we can only save 1000 / 6 = 165 fields per layout on yours, and most other servers.

    That said, PRO2PDF Contribute Version allows for two datasets per shortcode, which would be a total of 330 fields per PDF form. In your case, the limit for “ratliff_employment” is 165 and the limit for the second field map “new_job_setup” is also 165…

    While we are considering adding javascript to handle larger amounts, such an addition would require timely rewriting of parts of the plugin.

    #2364 Reply


    Hello! I’m having issues mapping to long PDF too! I’m testing the premium version of the plugin on a demo site before I try to recreate this on my client’s live site.

    I ended up splitting my pdf into two forms and I get up to 75 fields and press save and the fieldmap is not saved.

    I changed my php.ini to:
    max_input_vars = 2500
    memory_limit = 32M
    upload_max_filesize = 24M
    post_max_size = 32M

    What am I missing? Can you help?


    #2365 Reply


    With your settings as they are, we would need to check directly under the hood to find the issue. Please email temporary admin access to support (at) and we’ll find out what the issue is.

    We remain at your service.

    #2413 Reply


    As of today’s update, the number field maps per layout has increased to a maximum of 350 per layout. Adding a 2nd layout will allow for up to 700 field mappings to create dynamic pdf files.

    FYI, the 2nd dataset option can also be the same form as the 1st dataset option, so you can split the same form into two separate layouts for a maximum of 700 field mappings

    #2414 Reply


    Awesome! Thank you so much for your help! 🙂

    #3181 Reply


    Hello, I have encountered the same iissue with this plugin. I am creating a field map for a rather long form (around 300 fields), literally put hours of work mapping out the fields and suddenly the plugin erased the entire field map.

    I am happy to provide a login to get some help with the internal settings. Please let me know where to send a PM.

    Thank you

    #3187 Reply


    Please send to support at formidablepro2pdf DOT com, did you check for the backup under the backup tab?

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